China
The first documented note of gunpowder was in China, in around 142 A.D.
1000AD or so.
China
Gunpowder for guns
Iraq
The Chinese are credited with the invention of gunpowder more than 1,000 years ago. The actual person who put the compound together for the first time is unknown to history.
they, didn't the Chinese did.
Wei Boyan did not invent gunpowder. Gunpowder is believed to have been invented in China around the 9th century by Taoist alchemists searching for an elixir of immortality.
Great Britain
yes
1248
France was the first country to invent the toothbrush.