it was a glorious feast though

On the Origins of Opera

What we today call opera is conventionally traced back to the dramas of ancient Greece. But the Egyptians had been performing the Heb-Sed, or “Feast of the Tail,” for 2,000 years when the Greeks started writing their plays. The Heb-Sed evolved to be a mixture of entertainment and education, rather than strictly religious. Egyptians acted out stories from Egypt’s glorious past set to music and singing, which would both amuse the audience and educate them on Egypt’s history and (ridiculously complicated) religious mythology.