Fired-clay pottery

7000 B.C.

Wheels in Mesopotamia

4000 B.C.

Egyptians have mirrors of metal

3500 B.C.

Writing and record keeping evident in Egypt

3100 B.C.

Sumerians divide day into 24 hours

3000 B.C.

Sumerians divide hour into 60 minutes

3000 B.C.

Sumerians divide minute into 60 seconds

3000 B.C.

Sumerians divide circle into 360 degrees

3000 B.C.

Troy inhabited

3000 B.C.

Egyptians use calendar with 365 days

2773 B.C.

Sumer has fully articulated military

2700 B.C.

Sumer tells 600-700 armies full time, first pro army

2600 B.C.

Battering ram developed.

2500 B.C.

Sargon's army of 5,300 is big for the time.

2300 B.C.

First zoo has opening day, in China

2000 B.C.

Mycenae (Greece) flourishes

1600 B.C.

Mycenae dominates Aegean

1450 B.C.

Mycenae reaches its peak

1320 B.C.

Trojan War (between Troy and Mycenae

1190 B.C.

Mycenae falls to invaders

1100 B.C.

Age of Darkness in Aegean area

1100 B.C - 800 B.C

Israelite tribes united under Saul

1020 B.C

First Olympic Games

776 B.C.

Homer writing

750 B.C