ancient world

I remember seeing it remarked that the invention of gunpowder was so random that a writer could have a plausible excuse for it to happen at any time, so that got me wondering, what's the soonest that it could be combined with other technologies to make effective weapons? As far as I can tell...

So, it is a common wisdom that medieval agriculture and medieval agricultural technology were much more advanced than ancient Roman agriculture. Because I'm not a specialist of the matter, I asked you weather and how the medieval agriculture was superior to the ancient one? Had they better...

Dear AH'ers In order to celebrate the new version of AH.com and because I've long been wanting to improve it, I'm going to reboot a previous TL of mine that I started in October 2013 and shamefully abandoned about one year later despite having had numerous interesting comments by the community...