Panama Canal
Colombia, France, and later the United States controlled the territory surrounding the canal during construction. The US continued to control the canal and surrounding Panama Canal Zone until the 1977 Torrijos–Carter Treaties provided for handover to Panama. After a period of joint American–Panamanian control, in 1999, the canal was taken over by the Panamanian government. It is now managed and operated by the government-owned Panama Canal Authority.
United States nationality law
The law contains one other section of historical note, concerning the Panama Canal Zone and the nation of Panama. In , the law states that anyone born in the Canal Zone or in Panama itself, on or after February 26, 1904, to a mother or father who is a United States citizen, was "declared" to be a United States citizen at birth.