when was the u. s. army established
Corps of Engineers, June 16, 1775. Continental Congress authority for a Chief Engineer for the Army dates from June 16, 1775. A corps of Engineers for the United States was authorized by the Congress on March 11, 1779. The Corps of Engineers as it is known today came into being on March 16, 1802, when the President was authorized to organize and establish a Corps of Engineers ... that the said Corps ...