Ancient Rome By chloe_adams 753 BCE Founding of Rome 509 BCE Republic is formed The hierarchy of kings was overthrown and replaced with a senate. 215 BCE Lex Oppia a Law established at the height of the second punic war 133 BCE Late Republic 23 BCE Lex Iulia A law that was introduced by any member of the Julia family 9 Lex Papia Poppaea law introduced to encourage marriage