1. Time How do we measure time? When was 3,000,000 years ago? What is a timeline?

2. Time Units of Measurement UNITSIZE Second Minute60 seconds Hour60 minutes Day24 hours Week7 days Fortnight14 days, 2 weeks MonthBetween 28 and 31 days Quarter3 months UNITSIZE Year12 months Olympiad4 years Lustrum5 years Decade10 years Indict15 years Generation25 years Century100 years Millennium1000 years Epoch, Period, Era, Eon

3. Time Geological Time Cambrian Ordovician Silurian Devonian Carboniferous Permian Triassic Jurassic Cretaceous Tertiary Cultural Time Pre-history Old Stone Age New Stone Age Ancient Classical Middle Ages Modern Industrial

4. Time Paleolithic Mesolithic Neolithic Copper Bronze Iron Steel Computer 2,000,000 years ago 10,000 years ago 8,000 years ago 7,000 years ago 5,500 years ago 3,200 years ago 200 years ago 60 years ago Technological Time

5. Time January 1, 2000

6. Time CalendarDate GregorianJanuary 1, 2000 BabylonianYear 2749 BuddhistYear 2544 Chinese Cycle 78, year 16 (Ji-Mao), month 11 (Wu-Yin), day 25 (Wu-Wu) EgyptianYear 6236 Ethiopian 23 Takhsas 1993 French Décade II, Duodi de Nivôse de l'Année 208 de la Révolution Greek 22 Kiyahk 1716 Hebrew 23 Teveth 5760 Islamic 24 Ramadan 1420 Julian 19 December 1999 Mayan Long count = 12.19.6.15.0; tzolkin = 9 Ahau; haab = 8 Kankin Persian 11 Dey 1378

7. Time Why???? CalendarDating point HebrewCreation of world IslamicYear of the hijira FrenchDate of French Revolution North KoreaBirth of Kim Il-Sung BuddhistBirth of Sidhartha Western culture??????????

8. Time Dionysius Exiguus “Dennis the Little (Humble)” 470-544 Future dates on which Easter would fall "the consulship of Probus Junior [Flavius Probus]“ "since the incarnation [conception] of our Lord Jesus Christ“ 25 March 1 AD 'Anno Domini Nostri Iesu Christi' ('In the Year of Our Lord Jesus Christ')

9. Time Anno Domini “In the Year of our Lord”A. D. Before ChristB. C. Before the Common Era B. C. E. The Common EraC. E. B. C. = B. C. E.A. D. = C. E.

10. Time Timeline A representation or exhibit key events within a particular historical period, often consisting of illustrative visual material accompanied by written commentary, arranged chronologically.

11. Time oldest most recent end point

12. Time 0100 200 300 BC/BCEAD

13. Time 10,000 BC Neolithic Revolution 3100 BC Upper and Lower Egypt United 2670 BC First Dynasty of Ur 2500 BC Mohenjo-Daro 1500 BC Shang Dynasty 2000 BC Minoans and Myceneans 753 BC Founding of Rome 476 AD Fall of the Roman Empire 1066 AD Norman Invasion of England 1215 AD Signing of the Magna Carta 11,000 BC 1300 AD 1000 AD 500 AD 0 1000 BC 5000 BC

14. Time

16. 0100 200 300 BC/BCEAD Centuries = 100 years

17. Time 0100 200 300 BC/BCEAD Centuries = 100 years First century BCSecond century AD

18. Time 0100 200 300 BC/BCEAD 160 BC Which century BC? 1 st 2 nd 3 rd 160 BC =2 nd century BC

19. Time 0100 200 300 BC/BCEAD 280 AD Which century AD? 1 st 2 nd 3 rd 280 AD =3 rd century AD

20. Time Rule for aligning dates to the correct century Add 1 to the 100’s number 160 +1 2 2 nd century 280 +1 3 3 rd century 2007 +1 21 21 century 1492 +1 15 15 th century

21. Time 0100 200 300 BC/BCEAD 3 rd century BC Which years BC? 1 st 2 nd 3 rd 3 rd century BC =Years 201 - 300 BC

22. Time Rule for aligning centuries with the correct date Subtract 1 from the 100’s and add the years 01 through 00

23. Time The Roman Empire fell in the fifth century AD. The Magna Carta was signed in the thirteenth century AD. 501 4 401 to 500 years 1301 12 1201 to 1300 years

24. Time