Morality plays emerged in the late Middle Ages as religious instruction and entertainment. These allegorical dramas, featuring characters like Everyman and Mankind, taught Christian morals to the masses through symbolic representations of virtues and vices. As Renaissance humanism grew, drama shifted towards secular themes. This transition gave rise to interludes, masques, and history plays, exploring human nature and relationships. Playwrights like Marlowe and Shakespeare revolutionized theater with complex characters and innovative language.