Complex sentence: In 1877, a telegraph line from Adelaide to Perth was completed, vastly improving intracontinental communication, and increasing the grow of colonial media, such as the first weekly newspaper, the "Western Mail," which commenced publishing in 1885.
Split into simpler sentences: In 1877, a telegraph line from Adelaide to Perth was completed, vastly improving intracontinental communication. This increased the growth of colonial media, such as the first weekly newspaper, the "Western Mail," which commenced publishing in 1885.