A halberd is a weapon similar to a spear and an axe combined and it was used in times of war. The halberd was mainly used in the Middle Ages in Europe.
a halberd
Castles in the Middle Ages were used to keep out enemies.
See the question: What are some weapons used in the middle ages?
In the Middle Ages
people in the middle ages used letters or talking to face to face
because they used wood smoke as a deorderant in the middle ages
A halberd resembles a spear with a large point. Attached to the side of the spear head are an axe-like attachment and a hook. The spear point is used to stab, the axe-head is used to hack, and the hook is used to drag down horsemen or to trip opponents. A Halberd, or also called a Halbert or Halbard, originated in the Middle Ages and continued to be used as a ceremonial weapon. In the 17th & 18th Centuries, it was the sign of a sergeant of infantry, thus some state militia units used them just prior to the American Civil War in 1850s. It was discontinued in the British Army in 1792 and replaced by the Spontoon. A Pike was a long version of the spear. In the British Army the pike was 18 feet long and used to repel cavalry and infantry charges. It was discontinued in the British army during the reign of Queen Anne. It preceeded the Halberd and did not have a axe blade.
to entertain
YES
Yes, polyphony was used during the Middle Ages. We do not have any real idea of when polyphony was introduced, but the earliest texts describing it date to the Early Middle Ages. By the end of the Middle Ages, it was highly developed. There is a link below to an article on polyphony, beginning at the section on its origins.
It was used in the middle ages by monks!