So for those who don't know, Tirant lo Blanc is a 15th century book by Joanot Martorell and Martí Joan de Galba about a Breton knight who travels to Greece and stops the fall of Constantinople! It was published in 1490, meaning it is a very early alternate history story! So what if this book made alternate history go mainstream? How could this happen and how would it affect culture? I wonder if an alt equivalent to Shakespeare would make alternate history plays?