bohorič was born in the market town of in the duchy of styria (now brestanica in slovenia). in 1584, he wrote his most notable work, (english: free winter hours). the book, written in latin, was the first grammar of slovene and the first slovene normative guide. it was adapted and republished as "grammatica latino-germanico-slavonica" in 1715 by janez adam geiger. in this work, bohorič codified the first slovene alphabet, now called the bohorič alphabet. it was used up to the 1840s, when it was replaced by gaj's latin alphabet.