Mesopotamia

Start-
4500 BC - 400 BC

Where-
Present day Iraq

Main inventions-
Cuneiform, irrigation

Religion—
Polytheistic

Writing/language—
Cuneiform

Main rivers—
Tigris and Euphrates

Indus Valley

Start—
2500 BC - 1500 BC

Where—
Present day Pakistan

Main inventions—
Plumbing, air conditioning

Religion—
Polytheistic

Writing/language—
Not deciphered

Main rivers—
Indus and Ganges

China

Start—
2000 BC - present

Where—
Present day China

Main inventions—
Paper, silk, astronomy

Religion—
Oracle Bones

Writing/language—
Calligraphy

Main rivers—
Yellow and Yangtze

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