Written by the English poet, playwright and actor William Shakespeare (26April 1564 (baptized) – 23 April 1616); Macbeth is a tragedy, considered one of his darkest and most powerful works. Set in Scotland, the play dramatizes the corrosive psychological and political effects produced by Macbeth when he choses evil to fulfill his ambition for power. The reputation of Shakespeare’s as the greatest writer in the English language began during the 18th century, where a quarter of plays performed on London stage were by him. The 18th century and 19th century also began the age of star actors and actresses like David Garrick, John Phillip Kemble and Sarah Siddons, whose Shakespearean performances led to great critical fame.