What do the ancient greek theatre, the medieval theatre, the elizabethan stage and the beijing opera all have in common?

The ancient Greek theatre, the medieval theatre, the Elizabethan stage and the Beijing Opera are similar in a way that none of the roles were played by women. Plays from the ancient Greek theatre were usually influenced by Greek mythology. On the other hand, the unique characteristic of the medieval theatre is simultaneous staging. The style of plays of William Shakespeare is considered to belong to the Elizabethan stage. Lastly, the Beijing opera combines acrobatics, music, dance, mime, and vocal performance.

Iam about 95% sure this wasn't asked on a school assignment.never heard of it.i dunno, i've been missin' you?