Alphabet — Metals
InventTable — ALPHABET ERA — Materials, metals
Invention | Description | Year | Inventor | Country |
Buckle | metal | 700 BCE | Greece | |
Metal boat anchor | 600 BCE | Greece | ||
Wootz crucible steel | Damascus steel | 600 BCE | South India | |
Chain mail | metal | 400 BCE | Romania | |
Gears | metal and wood | 350 BCE | China | |
Ball bearing | metal and wood | 40 AD | Rome | |
Metal fork | hygiene utensil | 300 AD | Rome | |
Paired metal stirrups | require a saddle to attach | 300 AD | China (62) |