Instantly Access Production Data Subscribe now to receive immediate access to. oil and gas production for NGL Water Solutions Permian, LLC. from April 2014 to October 2017.
Timeline. 1  1965: Plans for the John Hancock Center are announced. 2  1969: Construction is completed. 3  1972: The Hancock Center is surpassed by the Standard Oil Building (now the Aon Center) as the tallest building in Chicago.  1973: The residential portion of this building converts from apartments to condominiums.
Residence Construction: 1792-1800. The White House construction began in 1792. John Adams became the first president to take residence in the building on November 1, 1800. It was a grand mansion in the neo-classical federal style, with details that echo classical Greek Ionic architecture.