1861
American Civil War: Battle of First Manassas - the first major land battle of the war results in a Confederate victory.
AI analysis
读：The Battle of First Manassas, also known as the First Battle of Bull Run, was the first major land battle of the American Civil War. It took place on July 27, 1861, near Manassas Junction, Virginia. The battle resulted in a Confederate victory, marking a significant turning point in the war. --来自AI解读
1921
Researchers at the University of Toronto, led by biochemist Frederick Banting, prove that the hormone insulin regulates blood sugar.
AI analysis
读：On July 27, 1921, researchers at the University of Toronto, led by biochemist Frederick Banting, made a groundbreaking discovery that the hormone insulin regulates blood sugar. This finding revolutionized the treatment of diabetes and saved countless lives. --来自AI解读
1940
Bugs Bunny makes his debut in the Warner Bros. cartoon short "A Wild Hare".
AI analysis
读：On July 27, 1940, Bugs Bunny, one of the most beloved cartoon characters, made his debut in the Warner Bros. cartoon short "A Wild Hare". Bugs Bunny has since become an iconic figure in American animation and popular culture. --来自AI解读
1953
Korean War: The United States, China, and North and South Korea sign an armistice agreement, ending hostilities and setting the stage for the demilitarized zone.
AI analysis
读：On July 27, 1953, the United States, China, and North and South Korea signed an armistice agreement, bringing an end to the Korean War. The agreement established the Demilitarized Zone (DMZ) along the 38th parallel, which remains in place today. --来自AI解读
1974
Watergate scandal: The House of Representatives votes to impeach Richard Nixon on the first of three charges of impeachment.
AI analysis
读：On July 27, 1974, the House of Representatives voted to impeach Richard Nixon on the first of three charges of impeachment. This marked a significant moment in the Watergate scandal, which ultimately led to Nixon's resignation from office. --来自AI解读
1996
Centennial Olympic Park bombing: In Atlanta, Georgia, a pipe bomb explodes at Centennial Olympic Park during the 1996 Summer Olympics, directly killing two and injuring over 100.
AI analysis
读：On July 27, 1996, a pipe bomb exploded at Centennial Olympic Park in Atlanta, Georgia, during the 1996 Summer Olympics. The attack resulted in the direct deaths of two people and injuries to over 100 others. The incident was a tragic and shocking event that marred the Olympic Games. --来自AI解读
2002
Ukraine airshow disaster: A Sukhoi Su-27 fighter crashes during an air show at Sknyliv airfield near Lviv, Ukraine, killing 77 and injuring over 500.
AI analysis
读：On July 27, 2002, a Sukhoi Su-27 fighter crashed during an air show at Sknyliv airfield near Lviv, Ukraine. The tragic accident resulted in the deaths of 77 people and injuries to over 500 others. It remains one of the worst air show disasters in history. --来自AI解读
2012
The opening ceremony of the 2012 Summer Olympics takes place at the Olympic Stadium in London.
AI analysis
读：On July 27, 2012, the opening ceremony of the 2012 Summer Olympics took place at the Olympic Stadium in London. The ceremony featured a spectacular display of British culture and history, marking the beginning of the Olympic Games. --来自AI解读
2013
47 people are killed and 180 injured in an attack on a bus in Xiamen, China.
AI analysis
读：On July 27, 2013, a devastating attack on a bus in Xiamen, China, resulted in the deaths of 47 people and injuries to 180 others. The incident was a tragic reminder of the ongoing security challenges faced by China. --来自AI解读
2016
Pence endorsement speech disrupted by protestor
AI analysis
读：On July 27, 2016, a protestor disrupted Mike Pence's endorsement speech at the Republican National Convention. The incident highlighted the tensions and divisions within the Republican Party during the 2016 presidential election. --来自AI解读
