The early Romans adopted culture from the Greeks and Etruscan, in particular but imprinted unique stamps on their borrowing. The Roman Empire then spread their culture far and wide affecting diverse areas of the modern world. For instance we still have Colosseum and satire, for entertainment, aqueducts, to supply water, and sewers to drain it. Going further and higher, the names of roman gods/goddesses pepper our constellations. Or the names of our planets are roman gods/goddesses names. All except Earth.
Colosseum
The Colosseum in Rome is an amphitheater. It was developed as an improvement from the Circus Maximus for gladiator combats, wild beast fights , and mock naval battles.
Gladiators
In ancient Rome gladiators fought, often to death, to entertain crowds of spectators. Fighters were trained in Sg. Ludus , to fight well in the Colosseum where the ground surface was covered in blood absorbing sand.
Roman Theater
Roman theater begins as a translation of Greek forms. In combination of native song an dance, farce and improve. In roman (well Italian) hands, the materials of Greek masters were covered to stock characters, plots, and situations we can recognize as Shakespeare and even modern sit-coms.