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Photograph was invented in the 1820s the method for photographs we’re improve throughout the century -
Telegraph was invented in the 1830s and it was practical use by late 1840s is the most important invention in the history of mass communication -
What was invented in 1877 and achieved a wider corporation during the 1920s as commercial radio was used -
The first US commercial radio station was aired in 1920 linking stations in various parts of the country are you single program simultaneously was established 1927 -
During the 1950s broadcast television emerged the mass media containing news drama music -
The 1990s were marked as an explosive growth in online services for people like computers, other ways to public access to Internet -
By the 21st Century mass media itself is heavily in the online world and a lot of people use all types of media today