TIMELINE
 
 
13.7 B - 4.6 B
 
4.6 B - 13 M
 
13 M - 15k BC
 
15k BC - 2,000 BC
 
2,000 BC - Zero
 
Zero - 1,000
 
1,000 - 1,800
 
1,800 - 1,900
 
1,900 - 2,000
 
2,000 - Present
 
Present
 
Future