Complex sentence: In 1910 a direct Toronto-Montreal line was built, as well as the start of construction on the line west of Edmonton through Yellowhead Pass to Vancouver, thanks to subsidies provided by the government of British Columbia.
Split into simpler sentences: In 1910 a direct Toronto-Montreal line was built. In western Canada, in 1910 construction was started on the line west of Edmonton through Yellowhead Pass to Vancouver, thanks to subsidies provided by the government of British Columbia.