Hot peppers are also called chilli peppers or chillies. They come in many shapes and size and in many colours - red, green, yellow, orange and even purple.
Chillies are originally from south America. In 1493, Columbus took them to Europe. Now people in India, Thailand, China, Korea and many countries in Africa, eat chillies. It's interesting that, in general, people eat hot chillies in hot countries, not cold ones.