William Clark, explorer of Pacific Northwest with Lewis, born (1770)

• Great Sites for Teaching About…Explorers
  Best sites on the web for teaching about exlorers
• The American West
  This site has an enormous amount of information to cover and does it very well. The site focuses on the "old West" and includes information on cowboys, Native Americans, pioneers and pioneer towns, explorers and more.
• From Sea to Shining Sea: A Nation Moves Westward
  
• Great Sites for Teaching About… Western Expansion
  

Francis Scott Key, author of “Star-spangled Banner”, born (1779)

Maria Mitchell, America's 1st woman astronomer, born (1818)

• Summer Science Is for Girls!
  How middle school girls are inspired to reach for the stars in math and science
• Meteor Showers
  Education World recommends some of the best web sites on meteors, comets, and amateur astronomy.
• March Into Women's History Month!
  Planning a March project to celebrate Women's History Month? Join us as we explore some of the best Web sites for and about women.
• 4000 Years of Women in Science
  Covers contributions and discoveries made by women working in fields of science over the last 4000 years.

Frontierswoman “Calamity Jane” Canary died (1903)

• March Into Women's History Month!
  Planning a March project to celebrate Women's History Month? Join us as we explore some of the best Web sites for and about women.
• The American West
  This site has an enormous amount of information to cover and does it very well. The site focuses on the "old West" and includes information on cowboys, Native Americans, pioneers and pioneer towns, explorers and more.

The Olympic games opened in Berlin with a ceremony presided over by Adolf Hitler (1936)

Joseph Priestley, British chemist, identified a gas which was later known as oxygen (1774)

Colorado became the 38th state (1876)

• Information : The Fifty States of the United States
  The site lists all 50 states with most of their features (flag, song, bird, motto etc.) and their capitol cities.

1st US Census taken (1790)

1st Pictures of Mars sent back to Earth by Mariner 6 (1969)

Germany declared war on Russia (1914)

US Customs established (1789)

First San Francisco Cable Car operated (1873)

US began sanctioning South Africa in protest against apartheid (1985)

• History: South Africa
  Resources from our database.

Atomic Energy Commission established (1946)

Utah Territory allowed women to vote in local elections (1870)

• Women and Social Movements in the United States, 1830-1930
  The site offers a collection of on-line primary documents and supporting materials on women's issues in history.

Oak Ridge Atomic Plant, 1st plant to make Uranium-235, broke ground (1943)

1st coast to coast automobile trip from (SF to NY) completed (1903)

Hawaii National Park established in 1916 (now known as Hawaii Volcanoes National Park)

• National Park Service
• U.S. National Parks
  This site is dedicated to providing information on all U.S. National Parks
• Our National Parks
  Some of the best sites on the Web for teaching about our national parks.

California introduced sales tax (for education) (1953)