1973
Culture
Sydney Opera House Opens
The iconic Sydney Opera House was officially opened by Queen Elizabeth II. Danish architect Jørn Utzon's radical design became one of the world's most recognizable buildings and a symbol of Australia.
On This Day in History
1944
War & Conflict
MacArthur Returns to Philippines
General Douglas MacArthur waded ashore at Leyte in the Philippines, fulfilling his famous promise 'I shall return.' The invasion began the liberation of the Philippines from Japanese occupation.
1818
Politics
US-Canada Border Established
The Convention of 1818 established the 49th parallel as the border between the United States and British North America from the Great Lakes to the Rocky Mountains. It remains the longest undefended border in the world.
1740
Politics
Maria Theresa Becomes Ruler
Maria Theresa succeeded her father as ruler of the Habsburg domains, becoming one of the most powerful women in European history. Her 40-year reign modernized and strengthened the Austrian Empire.
480
War & Conflict
Battle of Salamis
The Greek fleet decisively defeated the Persian navy in the narrow straits of Salamis. The victory saved Greek civilization and is considered one of the most important battles in Western history.
1962
War & Conflict
China-India Border War Begins
Chinese forces launched attacks across the disputed Himalayan border with India, beginning a brief but intense war. India's military was caught off-guard, leading to a humiliating defeat.
2011
Politics
Muammar Gaddafi Killed
Libyan dictator Muammar Gaddafi was captured and killed by rebel forces in Sirte after 42 years in power. His death marked the end of the Libyan civil war but left the country in chaos.