Complex sentence: Zionism as an organized movement is generally considered to have been fathered by Theodor Herzl in 1897; however the history of Zionism began earlier and related to Judaism and Jewish history.
Split into simpler sentences: Zionism as an organized movement is generally considered to have been founded by Theodor Herzl in 1897. However, the history of Zionism began earlier and is related to Judaism and Jewish history.