A jester, also known as joker, court jester, or fool, was a member of the household of a nobleman or a monarch kept to entertain guests at the royal court. Jesters were also travelling performers who entertained common folk at fairs and town markets, and the discipline continues into the modern day, where jesters perform at historical-themed events. Jester-like figures were common throughout the world, including Ancient Rome, China, Persia, and the Aztec empire. During the post-classical and Renaissance eras, jesters are often thought to have worn brightly coloured clothes and eccentric hats in a motley pattern. Their modern counterparts usually mimic this costume. Jesters entertained with a wide variety of skills: principal among them were song, music, and storytelling, but many also employed acrobatics, juggling, telling jokes (such as puns and imitation), and performing magic tricks.