Thaddeus Vladimir Gromada (born 30 July 1929 in Passaic, New Jersey) is a Polish-American historian. He is a professor emeritus of European history at the New Jersey City University, a former executive director and president of the Polish Institute of Arts & Sciences of America (PIASA) and the Polish American Historical Association and a trustee and vice chair of The Kosciuszko Foundation. His scholarly interests are focused on areas such as Polish and Polish-American 20th-century history.[1] [2] Gromada received a B.S. from Seton Hall University in 1951, before then studying at Fordham University, where he received both the M.A. (1953) and Ph.D. (1966).[3] At Fordham, he studied under Oskar Halecki. His doctoral dissertation, "The Slovak Question in Polish Foreign Policy, 1934-1939," was supervised by Oscar Halecki till 1964 only two years before he received his Ph.D.in1966, Halecki retired after the death of his wife. Dr. Gecys was a pro forma supervisor for the last two years. ProQuest Dissertations & Theses Global database. He began teaching at what was then known as Jersey City State College in 1959, being promoted to associate professor in 1966, and to professor in 1969.[4]