Bohorič's alphabet was first codified in 1584 by the Protestant author Adam Bohorič in his book "Articae horulae succisivae", considered to be the first grammar book of the Slovene language. It was based on the Latin script adopted from the German by Primož Trubar since 1555 and then used extensively for almost thirty years. It differed somewhat from the original alphabet, partly also due to changes introduced by Sebastjan Krelj and Jurij Dalmatin. It was used in Dalmatin's first translation of the entire Bible to the Slovene.