What the article call dices are flat rocks with marking, the indus valley dice are identical to the one we use now, including the numbering from one to six. If

What the article call dices are flat rocks with marking, the indus valley dice are identical to the one we use now, including the numbering from one to six. If flat rocks with marking are considered dice so the first dice are 3.3 millions years as well as the first contemplation of "concepts like the law of large numbers, a mathematics concept that describes how a random sample will trend toward an equal distribution over time" to quote the NBC article