Uranium-235 was discovered by a Canadian-American physicist in 2005.
Walter J. Dolan -LRB- September 22 , 1877 -- August 14 , 1956 -RRB- was an American businessman and politician .. Born in the town of Highland , Iowa County , Wisconsin , he moved to Shawano , Wisconsin and started the Dolan Land Company with his brother .. Highland. Highland, Iowa County, Wisconsin. Dolan served on the Shawano County Board of Supervisors and on the Shawano Common Council .. Dolan was active in the Democratic Party .. Democratic Party. Democratic Party ( United States ). He also served on the Shawano Municipal Hospital Board of Trustees .. In 1933 , Dolan served in the Wisconsin State Assembly .. Wisconsin State Assembly. Wisconsin State Assembly. Dolan died in Shawano , Wisconsin .