That would have to be the early firearm.
The Arquebus.
In no way could early armor defend from that weapon.
For castles, the cannon would end that form of defense.
Writing, history started when people were able to write things down.
The Microscope .
The Victorian era ended in 1901 this was also said as the end of the nineteenth century
Era of good feelings
No... infact the invention and utilization of primitive gunpowder by the Chinese and later used as artillery bombardments by the Arabs actually brought the age of knights and the crusades to an end after the fall of Byzantine Empire. Gunpowder is formed from collective agents used as an explosive (physically much of the force potential is wasted through the actual mechanisms of black powder and more refined uses of gunpowder were needed), but this force potential adding to the relative durability to armor is far greater. By being able to fire in both great distances and use the advantage of black smoke to confuse what was then a relatively close counter combat, gunpowder revolutionized how fortified castles could be brought down and how soldiers did not need to train all their lives for combat, such as knights did (thus having a limited amount of knights) and being able to train well prepared militias quickly to counter surging chargers brought the era of knights to an end. Yah for history and Physics!
Cannon and gunpowder.
The railroad
http://www.google.com/search?hl=en&q=knights+templar+apron+civil+war+era
It depended on what country they lived in and what era you're talking about. There have been knights in many different countries.
dick
The permian period was the end of the paleozoic era.
Although guns were not invented until after the end of the traditional knight's era (or at the end and contributed to it), modern knights are free to obtain a license for a firearm in the country they live in if they fulfill the requirements and wish to do so.
idkit never said .
The permian period was the end of the paleozoic era.
No technology.. Really technology era came after invention of computers
End of an Era was created on 2006-06-01.
Writing, history started when people were able to write things down.