What the the union pacific and central pacific railroad companies do?

the central pacific railroad (cprr) was a rail company chartered by u.s. congress in 1862 to build a railroad eastwards from sacramento, california, to complete the western part of the "first transcontinental railroad" in north america.
hopefully this (let me know if not)

The founder of the byzantine  empire  and its first  emperor,  constantine  the great,  movedthe  capital of the roman empire  to the city of byzantium in 330 ce, and renamed it  constantinople.  constantine  the great also legalized christianity, which had previously been persecuted in the  roman empire.