1896
First Modern Olympic Games Open
The inaugural modern Olympic Games, organized by Pierre de Coubertin, opened in Athens, Greece. This revival of the ancient tradition featured athletes from 14 nations competing in 43 events.
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All Events
1909
Robert Peary Reaches North Pole
American explorer Robert E. Peary, along with Matthew Henson and four Inuit guides, claimed to have reached the geographic North Pole. The claim, though later disputed, was a landmark in polar exploration.
1917
United States Enters World War I
The United States declared war on Germany, abandoning its policy of neutrality. This pivotal decision followed years of unrestricted submarine warfare and the Zimmermann Telegram, tipping the balance in favor of the Allies.
1992
Start of the Siege of Sarajevo
Bosnian Serb forces began the siege of Sarajevo, the capital of Bosnia and Herzegovina. It became the longest siege of a capital city in modern warfare, lasting nearly four years and causing immense civilian suffering.
1973
Launch of Pioneer 11 Spacecraft
NASA launched the Pioneer 11 robotic space probe on a mission to study the asteroid belt, Jupiter, and Saturn. It became the first spacecraft to make direct observations of Saturn and its rings.