The year, 1421
Extract from: "1421” by G. Menzies
Silk | 2640BC | ||
Fired stoneware | 1500BC | ||
Decimal system | 1350BC | ||
Cast iron | 550BC | ||
Iron plough | 500BC | ||
The crossbow | 500BC | ||
Magnetic compass | 350BC | ||
Paper | 175BC | Sorting silk cocoons | |
The wheel barrow | 150BC | ||
Stirrups | 150AD | ||
Seismometer | 175AD | ||
Woodblock printing | 500AD | ||
Porcelain | 500AD | ||
Gunpowder | 600AD | ||
Paper money | 850AD | ||
Abacus | 1200AD | A Mongol bomb thrown against a charging Japanese samurai during the Mongol invasions of Japan, 1281 |
|
Cargo ships | 1400AD |
China | $US 10,360 billion |
United States | $US 17,419 billion |
European Union | $US 18,460 billion |