Using measurements of time and chronology

COUNTING YEARS

WHEN we count the years we establish a chronology. The British system uses ordinal numbers (1^st, 2^nd, 3^rd, 14^th, 21^st…) while the Spanish system uses Roman numbers (s.I, s.II, s.III, s.XIV, s.XXI)

10 years - a decade

100 years – a century (e.g. 1^st century-s.I from the year 101 to 200)

1,000 years - a millennium (e.g. 2^nd millenium-s.XX from the year 1001 to 2000)

Today we are in the CHRISTIAN ERA. Our era began 2006 years ago, when Christ was born.

Dates before Christ: BC

Dates after Christ: AD (Anno Domini)

PLACING EVENTS IN TIME: the timeline

6000.BC 476.AD 1492 1789

Writing appears Collapse Discovery French Revolution

Year 0 Roman Empire America

/ / / / /

Prehistory Ancient Age Middle Ages Modern Age Contemporary Age

Exercises:

1. Write down the centuries for these years (use both the English and the Roman systems):

e.g.: 124 = 2^nd century - siglo II

370 BC 84 BC 2100 BC 683 BC

739 215 BC 181 100

1767 1323 BC 500 1817 BC

900 1500 1618 873

2. Write down any year for these centuries:

15^th cent - s. XV 26^th BC - s. XXVI a.C. 11^th cent - s.XI

19^th BC - s.XIX a.C. 20^th cent - s.XX 1^st BC - s.I a.C.

12^th cent - s.XII 7^th BC - s.VII a.C. 16^th cent - s.XVI

3. Which of these years is nearer our time: 1132 BC or 1194 BC?

4. What century was it 2357 years ago?

5. How many years are there from 958 b.C. to 1311?

6. What's the 11^th - XI century's first year and 10^th - X century's last year?

7. Write down the first and the last year for these dates:

The second milenium b.C. 15th century

2nd century b.C. 18th century

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