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The Calendar
The Calendar
The Calendar
The Calendar
The Calendar
The Calendar
The Calendar
The Calendar
The Calendar
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The Calendar

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PowerPoint for August 13th, 2009

PowerPoint for August 13th, 2009

Published in: Education, Technology
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Transcript

  • 1. The Calendar 2009 Information adapted from Millennium: An Interdisciplinary Investigation p. 22 and 24
  • 2. What is a Calendar? <ul><li>A simple way to measure the passage of time </li></ul>Picture used from Google Images from ohjoy.blogs.com
  • 3. Calendar <ul><li>Early people in history noticed time changes regularly </li></ul><ul><li>Sun rises, Sun sets, moon changes, seasons </li></ul>
  • 4. Calendar <ul><li>Many ancient civilizations made calendars </li></ul><ul><li>Each one is different </li></ul>
  • 5. The Gregorian Calendar <ul><li>12 months </li></ul><ul><li>Developed in the 1580’s by Pope Gregory XIII </li></ul><ul><li>Most widely used calendar in the world </li></ul>Picture used from Google Images from parbeszed.com
  • 6. The Gregorian Calendar <ul><li>This is not the only calendar </li></ul><ul><li>http://www.webexhibits.org/calendars/calendar-jewish.html </li></ul><ul><li>http://www.webexhibits.org/calendars/calendar-chinese.html </li></ul><ul><li>http://www.webexhibits.org/calendars/calendar-indian.html </li></ul><ul><li>http://www.webexhibits.org/calendars/calendar-islamic.html </li></ul>
  • 7. The Gregorian Calendar <ul><li>Christian calendar </li></ul><ul><li>Based on the birth of Jesus Christ </li></ul><ul><li>Uses B.C. and A.D. </li></ul>
  • 8. B.C. vs A.D. <ul><li>B.C. = Before Christ </li></ul><ul><li>A.D. = Anno Domini </li></ul><ul><ul><li>Latin for “In The Year of Our Lord” </li></ul></ul><ul><li>B.C. counts down ( 10, 000 B.C. – 1 B.C.) </li></ul><ul><li>A.D. counts up ( A.D. 1 – A.D. 2009) </li></ul>
  • 9. Other Abbreviations <ul><li>B.C.E. – Before Common Era (same as B.C.) </li></ul><ul><li>C.E. – Common Era (same as A.D.) </li></ul>

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