Okay Celtavian, you just need to stop this. It is becoming increasingly obvious that you don't know what you are talking about. Speaking as someone with a Bachelor's degree in History (with Medieval Europe and East Asia as my specialties), most of the facts you have been spouting have been completely wrong. Rather than tear them all apart one-by-one, I will focus on the Mongol issue and use it to point out some of the various issues covered in this thread.
I haven't been spouting facts. I've been generalizing about the progression of firearms and how it affected warfare and weapons.
No, I'm not completely wrong. I find it strange that you would say so given how few facts I've stated and the simplicity of my argument.
The Mongol's certainly didn't win battles using sheer numbers. After all, their biggest conquest was China, and it is almost a historical fact that no-one outnumbers the Chinese army.
No it is not historical fact. The Chinese army was not this unified force with modern communication standards and the ability rally thousands of troops quickly to a given location. It didn't work that way back then. China was spread amongst the country in urban and rural communities. There are many isolated villages, cities, and the like loosely unified by an emperor. It is nowhere near likt is in the modern day.
The Chinese weren't slouches either. The 13th century, Song-dynasty Chinese had pretty sophisticated "mountain-pattern" scale armor and even could field gunpowder artillery. There are plenty of historical accounts of the Chinese throwing gunpowder bombs off their walls at the besieging Mongols. The Mongols still won in the end using their horse-mounted archers and their brilliant organization and tactics. Of course the Mongols took gunpowder weapons for themselves and utilized them against their enemies, including the Chinese.
Throughout history, the nomadic tribes of the Central Asian steppes, who primarily relied on mounted archers, have repeatedly conquered everyone else in Eurasia. Their fighting ability can not be understated.
It was not the mounted archers that gave them superiority. Numbers had a great deal to do with it. If you are a student of history, you would admit this.
The Mongol Horde was called a horde for a reason. Genghis first united a great many Mongol tribes into a vast army. Then he took this army on to conquer other nations.
Very few were prepared to deal with an army this size because they did not maintain large standing armies that were anywhere near as mobile as the Mongol Horde.
You seem to believe that horse archers were anything new in warfare to Europe or China. Mounted archers have existed for a long, long time prior to the Mongol invasion. But not the numbers the Mongols brought to bear.
You going to argue this? I'd love to see you argue this one.
Anyways, guns and gunpowder have a much older history than people usually give them credit. Here is a rough timeline of the advancement of gunpowder weaponry (and the armor used to combat it):
10th-11th century: Gunpowder is invented in China and utilized in primitive incendiary and smoke bombs, as well as in fire spears and fire arrows. (In Europe, William the Conqueror invades England, Chainmail is still the best armor available, and the knight's lance hasn't been invented yet.)
12th century: Cannons and grenades are first utilized in warfare. (Richard the Lionhearted is off on the Crusades.)
13th century: Rocketry is first developed, and rockets are deployed as weapons. Cannons first spread to the Arabic world. (Later crusades, Mongols reach Europe.)
14th century: Ming China fields entire military divisions of gunpowder-using troops. The hand-cannon is developed. Gunpowder weapons reach Europe. Plate armor is developed and is worn by both mounted knights and foot-soldiers. (Hundred years war is in full swing.)
15th century: The matchlock arquebus is invented and widely adopted. Advancements with infantry trained with long pikes obsoletes mounted knights. Battles switch to armies of foot-soldiers wearing plate armor and armed with guns and spears. (The Battle of Agincourt is in 1415, Colombus discovers the Americas in 1492.)
16th century: Wheellock firearms are developed. Mounted archers are still being used by the Mughuls to conquer India (alongside muskets and cannons). Cortez conquers the Aztecs while wearing plate armor and carrying both a musket and a sword. Nobunaga Oda uses guns and swords to begin the unification of Japan. (Queen Elizabeth is alive in late 16th century.)
17th century: Around 1650, the flintlock musket is developed, finally creating a weapon that obsoletes plate armor. (The Scientific Revolution takes place.)
18th century: Flintlock muskets and field artillery fully rise to prominence, but cavalry swords and bayonet charges still play a major role in combat. (American Revolution and French Revolution occur towards the end).
19th century: The widespread adoption of rifling in gun barrels for the first time. The development, in rabid succession, of the minie ball, the percussion cap, smokeless gunpowder, metal cartridge ammunition, and repeating firearms paves the way for modern weapons. The Gatling gun and Maxim machine gun are invented.
20th century: Modern automatic firearms are invented and come into wide use. New materials are invented that can resist gunfire, making armor once again an essential part of the battlefield.
For some reason, a lot of people seem to block out large sections of this timeline from their thinking. When "early firearms" are brought up, they think of the 18th century, and completely forget about the seven hundred years of much more complicated history that preceded it. For example, Napoleon's troops were not using anything even resembling what could be called "early firearms", yet he seems to be continuously brought up in these discussions as if he did. It is also worth pointing out that plate armor and the knight are not directly correlated; plate armor only came into use in the twilight days of the knight, and lived on for centuries longer.
My background as a student of history makes me much more inclined to like having guns in D&D.
I know just about everything involving Medieval history you listed. I was aware plate came later. I'm not the one that brought up Napoleon. I'm aware that plate armor and its descendants such as partial plate contiued to exist and be used, though full suits of plate were more for ceremonial use than warfare.
The weapons were talking about are all about mass warfare. Guns, bows, mounted calvary charges, pikes, and the like were all mass warfare tactics that were most effective when employed by large, trained groups. And they changed how warfare was conducted, every single one of them and all were trumped by the gun.
What part of my argument do you consider wrong?
It's pretty simple. I'll state it in order.
1. Guns are better than bows. They will obviate the need for bows pretty quickly. They will obsolete plate armor pretty quickly. They have a nearly open ended growth potential that far exceeds the muscle-powered bow. Muscle-power is an inherent limitation of the bow that does not exist with the gun.
2. Guns change the way warfare is conducted. They change tactics, weapons, and just about everything involved in warfare including defensive contruction of buildings and fortifications.
3. If you are going to introduce guns into D&D, prepare to make the extreme change to the world that guns had on the real world.
You make it sound like gun advancement was slow. It wasn't unless you are looking only in terms of a few human lives. In terms of human history, gun advancement a lightning strike.
The Western World went from roughly 10000 years of knives, swords, spears, bows, slings, and their variations to roughly the Arquebus to Nuclear weapons in 600 years. Do you take that into account when introducing guns into your D&D world?
I do. To me 600 years is a flash in the pan. Just because Chine failed to capitalize on gunpowder and maximize its advantages doesn't change that Europe did maximize it to the effect of conquering most of the known world.
You write all that and all you do is prove exactly what I stated to begin with, except you supply greater factual evidence with dates and a rough timeline. Thanks for proving my argument.
Guns introduced into a D&D world will have a dramatic effect on warfare and personal weapons to the point it will obsolete plate, bows, swords, and the like. Dragons will be fought with heavy artillery as will giants. And the technology curve will speed along fairly fast.
You can even begin to discuss and hypothesize how magic will affect firearms advancement. Will it accelerate it or slow it? Both sides could be argued. But it will have an effect on the advancement of firearms.