Minecraft Physics
This is just a meme, so we’re not going to try and figure out whether axes were invented in 6,000 BC or not. But that’s not the point of this post. The problem here is someone trying to show that one year before 6,000 BC is 5,999 BC. Because, you know, 6,000 minus one, right?

Wrong! Incidentally, that’s now how BC years work. BC years go up the farther back you travel. To put it stupidly, think of BC as negative years. One year before 6,000 BC, the year before axes were invented, would be 6,001 BC. Come on people, you’re better than that – think before you hit send.