Akiba Rubinstein
Chess Player
Early 20th century Polish chess Grandmaster whose World Championship match in 1914 was cancelled due to the start of World War I.
He was studying to become a Rabbi when he discovered his chess prowess.
He had to abandon competitive chess as an older man due to mental illness.
He was born and raised as a member of a Jewish family in Poland.
He was a contemporary of Russian player Savielly Tartakower.