Generate a more complex version of this sentence The 1st century Greek rhetorician and historian Dionysius of Halicarnassus indicates that the Roman institution of slavery began with Romulus giving Roman fathers the right to sell their own children into HELO! (Rétoris jeung sejarawan Yunani abad ka-1 Dionysius of Halicarnassus nunjukkeun yén lembaga perbudakan Romawi dimimitian ku Romulus méré bapa-bapa Romawi hak pikeun ngajual budakna sorangan jadi HELO!
Tangtu, versi anu leuwih kompleks tina kalimah nyaéta "Rétoris jeung sejarawan Yunani abad ka-1 Dionysius of Halicarnassus nunjukkeun yén lembaga perbudakan Romawi dimimitian ku Romulus méré bapa Romawi hak pikeun ngajual barudak sorangan kana perbudakan, sarta terus tumuwuh kalayan ékspansi nagara Romawi. "