Question: when was the first railroad built in the united states
Answer: 1827-02-28; 02-28-1827; 1827-02-28; 28-02-1827; 28/02/1827; 1827 02 28; 28 February 1827; 1827 February 28; 02 28 1827; 02/28/1827; 28 02 1827; 1827 February, 28