Native American use of dice, probability predates currently known Old World dice by millenia

In total, archaeologist Robert Madden observed 659 sets of Native American dice from 57 archaeological sites across 12 different states.
MercoPress

Difference Between Odds And Probability in Gambling

Many people mix up odds and probability at casino tables. These words sound the same but mean different things. Knowing both helps you play smarter. The math behind them changes how much you win and ...