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What is History?

What is History?. Webster: A chronological record of significant events (as affecting a nation or institution) usually of their causes. What Is Time?. Webster: the measured or measurable period during which an action, process, or condition exists or continues. How do we measure time?.

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What is History?

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  1. What is History? • Webster: A chronological record of significant events (as affecting a nation or institution) usually of their causes

  2. What Is Time? • Webster: the measured or measurable period during which an action, process, or condition exists or continues.

  3. How do we measure time? Seconds Minutes Hours

  4. Days Decades Weeks Centuries Years Millennium How do we measure time?

  5. Calendars Is our calendar the only calendar? Aztec Calendar

  6. Calendars • Today’s date is 5760! • If you went by the Hebrew calendar it would be. • It begins with the Creation, which is calculated to be 3,760 before the birth of Christ.

  7. Calendars • Today is 1378! • It would be if you went by the Islamic calendar. • Theirs began with the year that Muhammad fled from Mecca.

  8. Calendars • Our calendar has its origin from the birth of Christ. • It was designated “AD” for anno Domini, “the year of the Lord.” • The years before AD 1 were designated “BC” before Christ.

  9. The Gregorian Calendar:Our Calendar • In 1582 Christopher Clavius introduced our present calendar • It allowed for 365 days and a “leap year” every year that is divisible by four.

  10. The Gregorian Calendar--Our Calendar

  11. Timelines: A Picture of Time A timeline is a chart that shows events in the flow of time, giving you a picture of how they relate to each other. • Events are linked to the timeline by lines to the point • precisely where they occurred. Event 1 Event 2 Event 4 Event 3 1940 1950 1960 1970 1980 1990 2000 • Divide into even divisions depending on • the length of time shown.

  12. September 11th Timeline American Airlines flight 11 crashes into north tower of World Trade Center United Airlines flight 175 crashes into south tower of World Trade Center President Bush speaks from Florida vowing to hunt down guilty parties Bush boards Air Force One for Offutt Air Force Base in Nebraska, headquarters of the U.S. Strategic Air Command American Airlines Flight 77 crashes into the the Pentagon U.S. military deploys missile destroyers and other equipment in New York and Washington • President Bush taken to Barksdale Air Force Base in Louisiana New York Mayor Giuliani orders evacuation of Manhattan FAA grounds all flights South tower of WTC collapses Seven World Trade Center collapses Bush arrives in Washington United Airlines flight crashes near Pittsburgh Bush addresses the nation North tower of the WTC collapses 8:00 A.M. 9:00 A.M. 10:00 A.M. 11:00 A.M. 12:00 P.M. 1:00 P.M. 2:00 P.M. 3:00 P.M. 4:00 P.M. 5:00 P.M. 6:00 P.M. 7:00 P.M. 8:00 P.M. 9:00 P.M.

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