Theodor Herzl
Jacob De Haas was born in London. He was the secretary of the First Zionist Congress and introduced Theodor Herzl to the UK in the "Jewish World" newspaper. In 1896, he became the first member of Hovevei Zion to encourage the movement to adopt the political Zionist program of Theodor Herzl. At the Third Zionist Congress in 1899, he and L. J. Greenberg were elected as members of the Zionist Organization's Propaganda Committee.