And what about Whiskey? The first written record of whisky comes from 1405 in Ireland, where it was distilled by monks. It is also mentioned in Scotland in 1496. However it is thought that whiskey had already been around for at least several hundred years prior. When or where whiskey was first distilled is unknown and the local, undocumented beverage production during the period makes identification of the drink's origin difficult. Additionally, it is possible that different groups discovered processes of distillation completely independently of one another.

Source: wikipedia