Title: What is History?
1What is History?
- Webster A chronological record of significant
events (as affecting a nation or institution)
usually of their causes
2What Is Time?
- Webster the measured or measurable period
during which an action, process, or condition
exists or continues.
3How do we measure time?
Seconds
Minutes
Hours
4How do we measure time?
5Calendars
Is our calendar the only calendar?
Aztec Calendar
6Calendars
- Todays 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.
7Calendars
- Today is 1378!
- It would be if you went by the Islamic calendar.
- Theirs began with the year that Muhammad fled
from Mecca.
8Calendars
- 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.
9The Gregorian CalendarOur 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.
10The Gregorian Calendar--Our Calendar
11Timelines 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
2000
1990
1980
1970
1960
1950
1940
- Divide into even divisions depending on
- the length of time shown.
12September 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
800 A.M.
900 A.M.
1000 A.M.
1100 A.M.
1200 P.M.
100 P.M.
200 P.M.
300 P.M.
400 P.M.
500 P.M.
600 P.M.
700 P.M.
800 P.M.
900 P.M.