The first period
The second period
Begins in 1789
Begins with the Fall of Constantinople (capital of the eastern Roman Empire)
The fourth period
More than two millions ago
The discovery of America by Cristobal Columbus in 1492 took place in this period
The third period
Begins with the fall of Western Roman Empire
Begins with the French REvolution
Begins in 1453
The Spanish war of Independence against France in 1808 took place in this period
Begins around 3200 BC in Mesopotamia
Begins at AD 476
The fifth period
Begins with the invention of writing
Still no writing