How differently would human history have played out if horses and camels didn't exist?

by [deleted]
lalallaalal

You'll want to check out /r/historicalwhatif for this question

Celebreth

Just letting you know, I've removed this question - in /r/AskHistorians, we can't answer what might have been if <insert contingency.> As another poster suggested, you might do better in /r/HistoricalWhatIf :)