Greek tragedy was a popular and influential form of drama performed in theatres across ancient Greece from the late 6th century BCE. The most famous playwrights of the genre were Aeschylus, Sophocles, and Euripides and many of their works were still performed centuries after their initial premiere.
Dairy: Skim milk, cottage or low fat pot cheese or ricotta - approx. 90 min. digestion time whole milk cottage cheese - 120 min. digestion whole milk hard cheese - 4 to 5 hours digestion time
It also brings a minority opinion that Hard cheese that has been melted into food is no longer considered hard cheese and one need not wait 6 hours after eating it. There are limitations to this leniency and many Poskim don't accept it.