What Were the Crusades?

  • End of the Third Crusade
End of the Third Crusade
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During the high medieval period in Europe — a time when the continent’s population increased rapidly, bringing about great social and political change — Pope Urban II sparked a religious war when he urged Christians to recapture the Holy Land, a region that lies between the Jordan River and the Mediterranean Sea and is held sacred among Christians, Jews and Muslims, particularly the holy city of Jerusalem. The result was a series of military campaigns that lasted from 1095 to 1291, known today as the Crusades. 

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The Roots of Religious Conflict

By the end of the 11th century, about two-thirds of the ancient Christian world had been conquered by Muslims, including strategically and religiously important regions such as Palestine, Syria, and Egypt. When, around 1077, Muslim Turks took control of the Holy Land, religious and territorial frictions between the two religious groups reached a tipping point. Byzantine Emperor Alexius I Comnenus feared that his lands — the Eastern Roman Empire, which included the strategically important city of Constantinople (now Istanbul) — would be next, and he appealed to the pope for assistance. Pope Urban II responded in 1095, promising the knights of Europe that their sins would be forgiven if they recaptured the Holy Land and, more specifically, Jerusalem, for Christianity. With that fateful promise, the Crusades began. 

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Rallying to the Cause 

Pope Urban’s plea was met with a massive response, not only among knights but also among ordinary citizens who chose to join the Crusades. Their reasons for joining the holy war were varied. Many knights sought to defend Christianity while earning forgiveness for their sins and eternal glory, as promised by Pope Urban II. But their motives weren’t always religious. Knights also believed firmly in chivalry and sought out adventures in which they might gain honor or renown. The campaigns also presented material opportunities, with conquered land up for grabs. European merchants, too, were typically in favor of the Crusades, as they sought to monopolize important trading centers that were under Muslim control. They could also earn good money shipping Crusaders to the Middle East — an estimated 90,000 men, women, and children of all classes joined the First Crusade alone, so there was wealth to be made in providing passage. 

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4 Secrets of the CIA

  • Seal of the CIA
Seal of the CIA
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The Central Intelligence Agency has its fingers in many pies, from counterterrorism to offensive cyber operations and covert paramilitary actions. The mere mention of the CIA brings with it a certain mystique, conjuring up images of secret agents, globe-trotting spies, and clandestine activities. It’s no surprise, then, that the agency has featured heavily in numerous Hollywood movies, from Spy Game and Zero Dark Thirty to The Bourne Identity and Bridge of Spies.

The CIA was formed in 1947 by President Harry Truman, partly as a replacement for the Office of Strategic Services (OSS), which was disbanded after World War II. As a civilian intelligence service and part of the U.S. Intelligence Community, it is officially tasked with gathering, processing, and analyzing national security information from around the world. Unlike the FBI, the CIA has no law enforcement function — it’s also not allowed to collect information regarding “U.S. Persons,” although the agency’s actions have often proven controversial in that regard. 

Unsurprisingly, the CIA has kept — and uncovered — many secrets over the decades. Here are some of the most fascinating secrets from the agency’s history, from innovative spy techniques to daring covert missions. 

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The CIA Had Plenty of Secret Gadgets

The CIA created a range of secret gadgets that could have been straight out of a James Bond movie. The extensive list of low- and high-tech trickery includes hollow silver dollars for holding messages or film; miniature compasses hidden in cufflinks; pigeon-mounted mini cameras; a listening device designed to look like tiger excrement; and a robot fish called Charlie that secretly collected water samples. Perhaps most impressive of all was the “insectothopter,” a tiny robotic dragonfly that could eavesdrop on otherwise inaudible conversations. 

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The CIA Used the Skyhook Before Bond and Batman

In 1962, the CIA launched a mission — code-named Project COLDFEET — to investigate an abandoned Soviet research station on a floating ice island in the Arctic. Getting there was easy enough: Two Navy pilots secretly parachuted down onto the ice and began their search for information. The tricky part was how to recover the pilots and the information they had retrieved, as it was impossible to land an aircraft on the ice. So, the CIA decided to use its new Fulton surface-to-air recovery system, colloquially known as the Skyhook. The agents on the ground deployed a helium balloon that lifted a 500-foot line into the air. A slow-moving B-17 plane, with the Skyhook device attached to its nose, then flew overhead and snagged the line with the agents attached to the end of it, sweeping them into the air, at which point they were winched aboard the aircraft. Sound familiar? You might have seen the Skyhook used later by James Bond in 1965’s Thunderball and Batman in 2008’s The Dark Knight

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7 Innovations That Came Out of World War II

  • Penicillin vials
Penicillin vials
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It’s often said that wars bring about a wave of innovation — necessity being the mother of invention, as the old adage goes. In reality, that’s not necessarily true. According to some studies, there tends to be a significant decline in inventiveness immediately after the outbreak of a war, followed by a marked surge, the net result being a fairly standard rate of innovation overall. Creation through necessity or even desperation certainly happens, but prosperous, peaceful, and free societies tend to be just as inventive, if not more so.  

That said, plenty of technological innovation took place during World War II, especially in fields that had military applications. Here are some of the most pivotal, successful, and enduring inventions to come out of the war, from handy tools used by millions of people to miracle drugs that have saved countless lives.

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Duct Tape

In 1943, Vesta Stoudt, an Illinois woman with two sons serving in the U.S. Navy, was working in an ordnance plant when she noticed a problem with the ammunition boxes she was packing. The boxes were sealed with paper tape with a tab to open them, but this tab could easily tear off, leaving soldiers potentially scrambling to open the boxes in life-threatening situations. So, Stoudt came up with the idea of a waterproof fabric tape with which to seal the boxes — an idea she sent to none other than President Franklin D. Roosevelt. Impressed, the President sent her letter to the War Production Board, which soon came up with what we now know as duct tape. Not only was it easy to apply and remove on ammo boxes, but it also turned out to be endlessly handy for quickly repairing military equipment, including vehicles and weapons. 

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Radar

The fundamental principle underlying modern radar (which is actually an acronym for “radio detection and ranging”) was first observed in 1886 by physicist Heinrich Hertz, who found that electromagnetic waves could be reflected from various objects. It was during World War II, however, that modern, practical radar was developed. Britain had already established a chain of radar stations along its south and east coasts by the outbreak of the war, allowing for the detection of enemy aircraft at a range of 80 miles. The British then invented the cavity magnetron in 1940, paving the way for far more compact, powerful, and sensitive radar units (and, as it happens, microwave ovens). 

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The Shortest Wars in History

  • Soldiers in Six Day War
Soldiers in Six Day War
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The Irish writer and socialist Robert Wilson Lynd once wrote, “The belief in the possibility of a short, decisive war appears to be one of the most ancient and dangerous of human illusions.” It’s true — many wars drag on far beyond initial expectations, in some cases for centuries. For example, the conflict known as the Reconquista, in which Christian kingdoms fought the Moors to reconquer the Iberian territories, lasted a staggering 781 years. Many other conflicts have also spanned a century or more, perhaps most famously the Hundred Years’ War between England and France, which actually lasted for 116 years. 

In the last two centuries, however, most wars have lasted an average of three to four months (though there are many exceptions, including World War I and World War II). But even these months-long conflicts seem lengthy in comparison to history’s shortest wars, which lasted just days, hours, or even minutes. 

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Slovenian War of Independence (10 Days)

Slovenia declared its independence on June 25, 1991, becoming the first of the six republics to formally leave Yugoslavia (along with Croatia, which declared the same day). Two days later, the Yugoslav People’s Army intervened, sending in an armored battalion. The ensuing conflict was of low intensity, casualties were not high, and it ended after 10 days with the withdrawal of Yugoslav forces and a victory for the newly independent Slovenia. The reason for the relatively short length of the war was the simultaneous Croatian War of Independence (Croatia declared its independence on the same day as Slovenia). The Yugoslav People’s Army didn’t want to get stuck in a lengthy conflict with Slovenia because Croatia, with its sizable ethnic Serb minority, was a priority. The war with Croatia was a far bloodier and more brutal affair that lasted four years and seven months. 

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Little-Known Facts About the Korean War

  • Men of the Korean War
Men of the Korean War
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In the United States, the Korean War (1950-1953) is sometimes referred to as the “Forgotten War.” It started shortly after World War II and ended just before the Vietnam War, yet received a small amount of press coverage in the U.S. compared to either of those conflicts, and continues to receive relatively little attention to this day. Yet the Korean War was one of the most significant wars of the 20th century. It permanently altered the geopolitical landscape of Asia, set the stage for future Cold War conflicts such as the Vietnam War, and heightened tensions between the United States and Soviet Union that lasted for decades. As the first “hot” conflict of the Cold War, it pitted South Korea, backed by the U.S. and a coalition of capitalist nations, against communist North Korea, backed by China and the Soviet Union. For a more complete picture of this pivotal moment in world history, here are six facts about the Korean War.

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The Boundary Between North and South Korea Was Created From a National Geographic Map

While many borders are drawn with great deliberation and diplomatic care, this cannot be said about the boundary between North and South Korea. The division of the Korean Peninsula occurred in 1945 in the final months of World War II, when the United States and Soviet Union agreed to divide Korea in half, with the U.S. controlling the south and the Soviet Union controlling the north. The decision on where to place the dividing line fell to two young U.S. Army officers, who were told that time was of the essence. In a rush, they used a map of Korea they found a National Geographic map, and chose the 38th parallel as the midway boundary. The rushed decision was made in roughly 30 minutes, with no consideration given to the real-life geography of Korea or the lives of the people who lived there. As a result, the dividing line cut roads and railway lines in half, and arbitrarily sorted the Korean people onto two different sides of the escalating Cold War. The haphazard division of the Korean Peninsula was a prelude to the conflict that soon followed, when North Korean soldiers crossed the 38th parallel in 1950, marking the start of the Korean War.

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President Truman Mobilized Troops Without Congressional Approval

When the North Korean military invaded South Korea in 1950, U.S. President Harry S. Truman felt he needed to deploy American troops to curtail the spread of communism in the region, hoping to quell criticism at home that he was “soft on communism.” While the U.S. Constitution states that the President must receive approval from Congress before declaring war, Truman circumvented this obstacle by classifying the U.S. military presence in Korea as a “police action” to keep the peace in the region, instead of officially referring to it as a war. This made the Korean War the first time a U.S. President had unilaterally instigated military hostilities without congressional approval.

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9 World War II Facts Every History Buff Should Know

  • American marines in 1942
American marines in 1942
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Nearly 80 years after the final shots were fired, the shadow of World War II continues to loom large over the modern world. The scale and impact of the conflict were so profound that the story of this chapter in history has been retold in countless books, films, TV shows, video games, and more. It’s not difficult to understand why: From 1939 to 1945, the Second World War plunged nearly every part of the globe into a violent clash that altered the course of history, impacting virtually every aspect of human civilization, from politics to art to science. Here are nine facts about World War II that every history buff should know.

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The Father of Computer Science Spent the War Cracking Nazi Codes

In 1940, the Germans began communicating using a nearly unbreakable code, encrypted with a machine called Enigma that rendered it indecipherable to nearly every Allied codebreaker. The complex cipher was finally broken by British mathematician and scientist Alan Turing, who later developed the mathematical framework for modern computer science. Working with a team of cryptanalysts, Turing built a computing machine called the Bombe that was capable of deciphering the Enigma code. Thanks to the breakthroughs of Turing and his colleagues, the British were able to decode encrypted Nazi messages in less than an hour, a development that changed the course of the war.

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7 Interesting Facts About Napoleon Bonaparte

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Napoleon Bonaparte
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There are few individuals in European history as influential as Napoleon Bonaparte. The historic leader is remembered for his iconic bicorn hat, his allegedly short stature (a bit unfairly, since he was actually of average height for his time), and his singular military skill. During his lifetime, Napoleon went from a student in a French military academy to the ruler of an empire that spanned nearly all of continental Europe. By the time he was finally defeated in 1815, his series of conquests, known as the Napoleonic Wars, had changed the European continent forever. Here are seven facts about Napoleon Bonaparte that offer a small glimpse into his spectacular rise and fall.

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French Wasn’t His First Language

Despite the central role Napoleon played in the history of France, he didn’t start learning to speak French until he was 9 years old. Napoleon was born on the Mediterranean island of Corsica, where most people spoke a regional dialect of Italian, and this was the language he grew up speaking. He spoke with a Corsican accent throughout his life, and even after he became emperor of France, this accent continued to mark him as a foreigner on the French mainland and served as a reminder of his Mediterranean origins.

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5 Things You May Not Know About Genghis Khan

  • Genghis Khan
Genghis Khan
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Of all of history’s greatest leaders, few if any have held as much power and influence as the mighty Mongol ruler Genghis Khan. As founder of the Mongol Empire, Genghis laid waste to all who stood in his way en route to controlling a large swath of Asia during the early 13th century. Though Genghis was undeniably ruthless in his conquests, he was also a cunning tactician whose skills made him wildly effective in his imperialist efforts.

Genghis Khan lived from 1162 until 1227, rising from the ranks of relative obscurity to unify a once-scattered Steppe region in modern Mongolia and other parts of Central Asia. At the height of his power, no man was more feared or revered than Genghis, whose success as a conqueror led to one of the largest empires in history. Genghis Khan’s impact on global history is undeniable, and there’s much to be discussed about his life. Here are five facts about the infamous leader of the Mongols.

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Genghis Khan’s Birth Name Was Temüjin

Though he’s best known as Genghis Khan, that name was actually bestowed on the Mongol leader later in life. At birth, he was known as Temüjin, derived from the Turkic word temür, meaning “iron.” The name was an apt descriptor of the boy who would grow up to become a brutal warrior after being forced into a leadership role at a young age. After Temüjin’s father was poisoned when Temüjin was around 10 years old, the family was abandoned by their clan, forcing the boy to look after his mother and siblings. He showcased leadership skills from an early age, and spent the ensuing years conquering countless nomadic Steppe tribes. As recognition for his efforts, Mongol nobles gave him the name Chinggis Khan — Genghis Khan in the Western spelling — a title that roughly translates to “Universal Ruler.”

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6 Surprising Facts About Attila and the Huns

  • Illustration of Attila the Hun
Illustration of Attila the Hun
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More than 1,500 years after his death, Attila the Hun remains one of the most fear-inducing figures in history. He and his nomadic empire spent decades terrorizing and conquering Europe on horseback, so much so that he’s still remembered all across the continent — sometimes with reverence, sometimes with hatred. But many details of his life are unclear, and some that have been reliably recorded aren’t as widely known as the apocryphal legends about him. Here are five such facts about Attila and his empire.

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No One Knows Where the Huns Came From

The Huns were among the most feared people in the world, as well as some of the least understood. That’s exemplified by the fact that the tribe’s precise origins remain unknown to this day. They were nomads, after all, and while one popular theory posits that their roots can be traced back to the Xiongnu people of ancient Mongolia, it’s impossible to confirm. Even the etymology of the Huns’ name is disputed, with some historians ascribing it to the old Turkic word for “ferocious”; others thinking it comes from the Persian term hūnarā, meaning “skilled”; and others still of the belief that it’s derived from the Ongi River in Mongolia, which could possibly have been the Huns’ ancestral homeland.

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