Slate's Sonia Smith delivers this neat history of "booing" through the ages:
The first written record comes from ancient Greece. At the annual Festival of Dionysia in Athens, playwrights competed to determine whose tragedy was the best. When the democratic reformer Cleisthenes came to power in the sixth century B.C., audience participation came to be regarded as a civic duty. The audience applauded to show its approval and shouted and whistled to show displeasure…
While people have expressed displeasure publicly since ancient times, the English word boo was first used in the early 19th century to describe the lowing sound that cattle make. Later in the 1800s, the word came to be used to describe the disapproving cry of crowds.
(via Monochrom)
