If you mean soldiers in full plate armor, the gun was probably the most important invention in making them obsolete. Their armor worked pretty well against arrows but not bullets.
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The above is certainly conventional understanding and taught in many schools. But actually, the fully armored knight was already obsolescent when the guns appeared on the field. The massed English archers of the Battles of Crecy and Agincourt destroyed formations of charging knights at long range with little damage to the English themselves. So the invention of massed archers with English longbows is one that has to be considered.
The only advantage in using musketeers of the time instead of archers with longbows was that the musketeers could be trained in a week, but training archers was a process that took years. Many kings did not want to have large numbers of archers, because they represented a threat to the king in times of peasant unrest.
there clothes are made out of iron. by roxey
If knights became obsolete, it would significantly undermine the feudal system, which relied on their military prowess for protection and local governance. Without knights to serve as warriors for lords, the power dynamics would shift, leading to a decline in the traditional hierarchical structure. This loss of military force could encourage the rise of centralized monarchies or alternative forms of governance, further eroding feudal loyalties and dependencies. Consequently, the decline of knightly roles would accelerate the transition toward more modern political and social systems.
Because Gunpowder made the walls obsolete as a means of defence.
OB is the abbreviation for obsolete.
it was obsolete by the invention of the gun
obsolete
telegraph
Minicomputers are no longer made, the microcomputer made them obsolete.
Because it's obsolete. Obsolete means that people have made something better and no longer need the first version.
the men were made into knights when the king knighted him on both soldiers with a sword
Anti-Ship Missiles
Invention of the pendulum clock
iron
Knights' mail was made out of iron rings. When the knights progreesed to plate armor, it was made of still plates sewn together. The Steel got better in quality over the ages, especially when firearms came to Europe.
the siege tower
A Code of Chivalry are rules of behaviour which a man was supposed to follow when he was made a knight. The idea of a knight as an epitome of virtue became very popular during the 12th and 13th centuries and was used in the development of the Legends of King Arthur at that time. However, as the use of knights as a military force was made obsolete by gunpowder, knighthoods were given more as political rewards than anything else, and the knights did not and were not expected to adhere to any particular moral code.
A Code of Chivalry are rules of behaviour which a man was supposed to follow when he was made a knight. The idea of a knight as an epitome of virtue became very popular during the 12th and 13th centuries and was used in the development of the Legends of King Arthur at that time. However, as the use of knights as a military force was made obsolete by gunpowder, knighthoods were given more as political rewards than anything else, and the knights did not and were not expected to adhere to any particular moral code.