Complex sentence: Budweiser is a German language adjective referring to the Bohemian city of "Budweis" which was until 1919 part of Austria-Hungary, then as České Budějovice part of Czechoslovakia, since 1993 the modern day Czech Republic.
Split into simpler sentences: Budweiser is a German language adjective referring to the Bohemian city of "Budweis", which was until 1919 part of Austria-Hungary. Later it became known as České Budějovice part of Czechoslovakia, and since 1993, part of the modern day Czech Republic.