The abacus.
It is not known who exactly invented the hand cannon but it is thought to have originated in China. The hand cannon is the earliest firearm.
The earliest "musket" was seen in warfare in the 1500s, as a support weapon for pike regiments. However the earliest form of hand-held firearm was the hand-cannon, created in 13th century China. You're spelling/grammar is absolutely atrocious.
china
ig china
The first calculator is believed to have been invented in North Africa, however China invented the spoon and the compass.
The earliest documentation of fireworks dates back to 7th century China. They were invented more than 2000 years ago in China.
Blaise Pascal, France, 1642: invented the mechanical calculator. William Seward Burroughs in 1885 in New York, USA, constructed his first adding machine; though it proved commercially impractical, he patented a practical model in 1892
by hand
The earliest documentation of fireworks dates back to 7th century China. They were invented more than 2000 years ago in China.
China
In the Shandong region in china
Cannons are first documented during the 13th century. A cannon was discovered in northeastern China dating to the 1200s, and the earliest artistic depiction of a hand cannon is a firearm-wielding figure that was found in twelfth-century Sichuan, China.