Respuesta :
Answer:
William Tecumseh Sherman The 10th May 1869 was the day the first ever United States Transcontinental Railroad was completed. The project began in 1863 and took 6 years to complete,
Explanation:
On May 10, 1869, a golden spike was driven at Promontory, Utah, signaling the completion of the first transcontinental railroad in the United States.