Wikipedia:Selected anniversaries/September 17

September 17: Citizenship Day in the United States

At the Signing of the Camp David Accords

• 1787: The text of the United States Constitution was finalized in Philadelphia.
• 1809: The Treaty of Fredrikshamn concluded the Finnish War between Russia and Sweden, with Finland becoming an autonomous Grand Duchy under Czar 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.
• 1908: Thomas Selfridge became the first passenger to die in a plane crash.
• 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).

Recent days: September 16 – September 15 – September 14

More anniversaries:

• August 31
• September 1
• September 2