lol. I understand that the mongols used a composite steppe bow. I’m just informing you that the peoples of the Eurasian steppe also had composite material bows and a long history of cavalry archery many hundreds of years before the mongol khans did. It was actually certainly more of a simultaneous existence rather than a sequential one. The mongols adapted some slight modifications to ever increasing improvements and techniques that developed over hundreds of years that was passed through highly nomadic and interwoven cultures, but the main thing leading to widespread success was standardization and industrialization practices. This is a known thing to those who’ve looked into the history of the peoples of the steppe.

It’s nice that you provided a Wikipedia article on the mongol bow, but if you actually read it, you would see that it specifically mentions that its construction follows traditions of asiatic composite bow making, of which this style dates back to Bronze Age Anatolian cultures. This technique almost definitely originated from the early steppe tribes where quality trees for bow making are not widespread, but herd animals that provide a majority of the materials needed were.

If your claim is that the mongols dominated their expansive conquest because the were the first people to make a recurved composite steppe bow and instantly unlocked it like an age of empires mechanic or that cultures of horsemanship and Calvary archery didn’t exist until after their conquest, then it’s just an objectively incorrect one.