When Union Pacific and Norfolk Southern announced their merger deal Tuesday to form “America’s first transcontinental railroad,” it puzzled some who recalled the golden spike driven in 1869 at Utah’s Promontory Summit. That last spike only connected two railroads from Omaha, Neb., to Sacramento, Calif.

Omaha-based Union Pacific Railroad’s announcement Tuesday that it is acquiring the Norfolk Southern Railway — a move that would create the first transcontinental, coast-to-coast rail system — drew praise from Nebraska’s public and business leaders.

OMAHA, NEB. — Union Pacific Corp. has agreed to acquire Norfolk Southern Corp. for $85 billion, a merger that would unite two of North America’s Class I freight railroads and major US-based grain shippers to create the country’s first transcontinental railroad.