during which decade did transcontinental rail service begin in the united states?\n1850 - 1860\n1860…

during which decade did transcontinental rail service begin in the united states?\n1850 - 1860\n1860 - 1870\n1870 - 1880\n1880 - 1890
Answer
Answer:
1860 - 1870
Brief Explanations:
El servicio ferroviario transcontinental en Estados Unidos comenzó en 1869 con la unión de las líneas del Pacífico Central y del Pacífico Unión en Promontory Summit, Utah, dentro de la década de 1860 - 1870.