1623 The first European settlement in New Hampshire is founded.
1725 The first reported case of white men scalping Native Americans takes place in New Hampshire colony.
1769 December 13: Dartmouth College in Hanover, New Hampshire is established as John Wentworth, the Royal Governor, conveys a charter from King George III of England.
1788 New Hampshire ratifies the United States Constitution and becomes the 9th U.S. state. The Constitution then went into effect.
1804 The Twelfth Amendment to the U.S. Constitution ratified by New Hampshire, and arguably becomes effective (subsequently vetoed by the Governor of New Hampshire).
1804 The Twelfth Amendment to the U.S. Constitution ratified by New Hampshire, and arguably becomes effective (subsequently vetoed by the Governor of New Hampshire).
1852 Democrat Franklin Pierce of New Hampshire defeats Whig Winfield Scott of Virginia in the U.S. presidential election
1905 Russo-Japanese War: Treaty of Portsmouth signed - In New Hampshire a treaty mediated by US President Theodore Roosevelt, is signed by victor Japan and defeated party Russia. In the agreement, Russia cedes the island of Sakhalin and port and rail rights in Manchuria to Japan.
1964 The New Hampshire primary is won by Henry Cabot Lodge, Ambassador to South Vietnam.
1965 Jonathan Myrick Daniels an Episcopal seminarian from Keane, New Hampshire, was murdered in Hayneville, Alabama while working in the American civil rights movement.
1985 U.S. Vice President George H.W. Bush announces that New Hampshire teacher Christa McAuliffe will become the first schoolteacher to ride aboard the Space Shuttle ''Challenger''.
2000 Election 2000: February 1 - Vice President Al Gore wins the New Hampshire Democratic primary. George W. Bush wins the Republican primary. Gary Bauer withdraws from the race February 4, followed by Steve Forbes, February 10.
2003 The Old Man of the Mountain, a rock formation in New Hampshire, crumbles after heavy rain.