Complex sentence: Permission was granted in 1861 to the Inverness and Perth Junction Railway to build a railway south from the Inverness and Aberdeen Junction at Forres, this opened in 1863 and in 1865 these two companies merged to became the Highland Railway.
Split into simpler sentences: Permission was granted in 1861 to the Inverness and Perth Junction Railway to build a railway south from the Inverness and Aberdeen Junction at Forres. This opened in 1863 and in 1865 these two companies merged to became the Highland Railway.