Thibaud Roy

II

Empires

II. Empires

5,200 years

It becomes a wheel.

The oldest wooden wheel yet found was pulled from a marsh near Ljubljana. It is about 5,200 years old.

1

II. Empires

50 km

Water, carried.

The aqueduct to Nîmes ran 50 kilometers and fell only a few centimeters every hundred meters.

2

II. Empires

80,000 km

Roads.

At its height Rome had more than 400,000 kilometers of roads, about 80,000 of them paved with stone.

3

II. Empires

300 km a day

A message, carried across a continent.

The Mongol relay, the Yam, kept fresh horses at stations across the empire. An urgent message could cover 300 kilometers in a day.

4

II. Empires

30 to 60 km

Every station only knows the next.

Stations sat every 30 to 60 kilometers. No rider crossed the empire. Every message did.

5

II. Empires

476

Empires fall.

The Western Roman Empire is usually said to have fallen in 476. The stones stayed.

6