People once wore metal suits. 
Long ago, people wore metal suits. 
Some armor was made of small rings. This was called mail. It was soft and easy to move in. 
Armor was very expensive to make. Only rich people could buy a full suit. Many soldiers wore just a few pieces.
Later, new guns changed everything. Guns could poke holes in the metal. Because of this, people wore less armor.
Today, we see these suits in museums. They tell us how people lived long ago.
Plate armour is a type of body protection. It is made from plates of bronze, iron, or steel.
In the past, people wore mail. Mail is made of many small metal rings. It was easy to move in. 

Making a full suit was very hard. Armourers made the plates move with the body. This helped the wearer run and jump. High quality suits cost a lot of money. Only rich people could buy them. Many soldiers wore cheaper, ready-made pieces.
In Japan, warriors also used plate armour. Some suits were even made to stop bullets. 
Eventually, guns changed how people fought. Bullets could go through the metal plates. Because of this, people wore less armour. Most soldiers began to wear only a breastplate. A breastplate is a single piece of metal for the chest.
Plate armour is a special kind of protection for the body. It is made from metal plates like bronze, iron, or steel. 
Before full plates were common, people mostly wore mail. Mail is made of hundreds of small metal rings linked together with rivets. 

Full plate armour grew and changed over a long time. In ancient times, Greeks used bronze plates to protect their chests. The Roman Empire used a type of plate armour called Lorica segmentata. In Europe, full suits of plate armour were ready by about 1420. This happened during the Late Middle Ages. Armourers became very skilled at making metal pieces move together. They used small parts called lames to make the armour flexible. This made the suit fit the person almost like a tailor makes a suit. 
Making high-quality armour was a very big business. It cost a huge amount of money to buy a custom suit. Because of the high cost, only very wealthy people could own them. Most soldiers wore cheaper, ready-made armour called munition armour. In Japan, warriors also made many types of armour. During the Sengoku period, they mass-produced simpler chest armour and helmets. Some Japanese armour makers even made "bullet tested" suits to stop firearms. 
Eventually, new weapons changed how people used armour. The invention of the musket meant bullets could pierce metal plates. This made full suits of armour less common in the 17th century. Many soldiers switched to wearing just a breastplate to protect their chests. Some groups, like the Polish Hussars, still used a lot of plate. Even in World War II, steel plates were used in flak jackets. Today, we use new materials like plastic to protect people instead of heavy metal.
Plate armour is a sophisticated type of personal protection made from metal plates. These plates are typically crafted from bronze, iron, or steel. 
To understand how plate armour works, one must look at its construction. Armourers developed the skill to create articulated lames. Lames are individual metal plates that overlap to allow for flexibility. This allowed the armour to move with the wearer's joints. 
Before full plate became the standard, mail armour was the primary defense. Mail consists of hundreds of small iron or steel rings. These rings are interlinked and held together by small metal rivets. 
History shows that plate armour evolved through many different cultures. In ancient Greece, warriors used bronze muscle cuirasses to protect their chests. The Roman Empire utilized a specific type of plate armour called Lorica segmentata. 

The production of armour was a massive and profitable industry. There was a major distinction between types of armour based on cost. High-quality, custom-fitted armour was extremely expensive. This meant it was mostly reserved for the wealthy nobility. These individuals were often committed to soldiering or jousting. 
As armour improved, weapons also changed to overcome it. While plate was great against cuts, it had weak points. Thrusting weapons like estocs, poleaxes, and halberds were designed to exploit these gaps. 
The decline of full plate armour was driven by new technology. The development of the musket changed everything. Bullets could penetrate metal plates from a considerable distance. By the early 17th century, the use of full suits began to fade. Many soldiers moved toward wearing only a simple breastplate, known as a cuirass. Some groups, such as the Polish Hussars, continued to use significant amounts of plate. Even in the 20th century, the concept of metal protection survived. Steel plates were used in flak jackets during World War II. Today, modern materials like fibre-reinforced plastic have replaced heavy metal plates.
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