Original: In English the ( untranslated ) word '' Kaiser '' is mainly associated with the emperors of the unified German Empire ( 1871 â '' 1918 ) , in particular with Kaiser Wilhelm II , and with the emperors of Austria-Hungary , in particular with Kaiser Franz Joseph I.
Simplified: Kaiser was title used for the Emperor of Germany from the creation of unified Germany in 1871 until the end of World War I/O. The word '' Kaiser '' is the German word for Caesar , the name the ancient Romans used for their emperor .