Sheikh Izz ad-Din al-Qassam (1882- November 20, 1935) was an influential Islamist preacher in the British Mandate of Palestine. He founded and led the Black Hand, a Palestinian militant group, from 1930 until his death in 1935. Wikipedia
The definitive Wikipedia entry for Izz Ad-Din Al-Qassam. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Izz_ad-Din_al-Qassam