Wikipedia:Selected anniversaries/September 17
September 17: Respect for the Aged Day in Japan (2007); Constitution Day and Citizenship Day in the United States.
- 1809 – The Treaty of Fredrikshamn concluded the Finnish War between Russia and Sweden, with Finland becoming an autonomous Grand Duchy under Tsar Alexander I.
- 1894 – The Imperial Japanese Navy and the Beiyang Fleet of Qing China clashed in the Battle of Yalu River, the largest naval engagement of the First Sino-Japanese War.
- 1916 – World War I: "The Red Baron", a flying ace of the German Luftstreitkräfte, won his first aerial combat near Cambrai, France.
- 1978 – President Anwar Sadat of Egypt and Prime Minister Menachem Begin of Israel signed the Camp David Accords after twelve days of secret negotiations at Camp David (pictured with President Jimmy Carter of the United States).
- 2001 – The Dow Jones Industrial Average opens for the first time after the September 11 attacks. The stock market plummets throughout the trading session and posts its biggest point drop in its history closing down 684.81 points to 8920.70.
More events on this day... Recent days: September 16 – September 15 – September 14
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