Steel and manufacturing techniques.
life was not long with 'one' shot..........life improved with the colt revolver.............
The cucumber telegraph has improved over time through advancements in technology, allowing for faster and more reliable communication.
new improved strings
The weapons they used improved over time.
it hasnt
revolver supershot serial # 8013
it usto be big now its smaller :]
resting heart rate
it was the screen, the battery improved, and the STYLE
Never!, Samuel Colt did not ivent the first gun. He improved it and popularized the revolver.
The 89 was an improved version of the of the earlier Defender models and was made from 1889.
new technology richer more money and improved materials.