300 200 100 100 200 300

BC AD

(BEFORE CHRIST) (ANNO DOMINI)

Also BCE (before the common era) "IN THE YEAR OF OUR LORD" Time Line

2^nd Century BC includes the years 199-100 BC
2^nd Century AD includes the years 100 - 199 AD
The 2^nd Century is not the 200's but the 100's. 150 BC is the 100's BC
150 AD is the 100's AD. Centuries like 1^st , 2^nd, 14^th, are not the same as 100's, or 1300's.
We live during the 1900's but this is the 20^th century.

10 years = decade 100 years = century 1000 years = millinium SIGNIFICANT BEGINNINGS NEOLITHIC REVOLUTION -10,000 BC
EGYPTIAN CIVILIZATION - King Menes Unites upper and lower Egypt 3100 BC
SUMERIAN CIVILIZATION - First Dynasty of Ur 2670 BC
INDUS VALLEY CIVILIZATION - Mohenjo-Daro 2500 BC
HUANG HE CIVILIZATION - Shang Dynasty 1500 BC
GREEK CIVILIZATION- Minoans & Myceneans 2000 BC
ROMAN CIVILIZATION -Latuims enter the Italian Peninsula 1000 BC
Founding of city of Rome 753 BC