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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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What is history l.jpg

What is History?

  • Webster: A chronological record of significant events (as affecting a nation or institution) usually of their causes


What is time l.jpg

What Is Time?

  • Webster: the measured or measurable period during which an action, process, or condition exists or continues.


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How do we measure time?

Seconds

Minutes

Hours


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Days

Decades

Weeks

Centuries

Years

Millennium

How do we measure time?


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Calendars

Is our calendar the only calendar?

Aztec

Calendar


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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.


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Calendars

  • Today is 1378!

  • It would be if you went by the Islamic calendar.

  • Theirs began with the year that Muhammad fled from Mecca.


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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.


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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.


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The Gregorian Calendar--Our Calendar


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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.


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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

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