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In the 15th century the printer was invented which later in the 17th century led to the London Newspaper adding advertisements for local stores on their newspapers.

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In the 18th century all brands of Newspapers were advertising shops and brands on their newspapers, marking the advertising business first big boom.

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Later, As the western world began to develop, magazines became a very big opportunity for advertisers and business to sell their brand.

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The 50 foot posters that became known as billboards started in 1835 in New York. The poster were put on train cars and exterior building walls to help certain businesses promote their products.

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Once again, The advertising business boomed in the western world with the invention and expansion of the Television. This allowed businesses to show off their products to audience all over the country.

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In the 21st century, Once advertising on almost everything had been established, Business and advertising firms started to pick targets for their products. This is called Demographics. So depending on the product they were selling, say a Kids toy, they would sell it to that consumer, in the example of a Kids toy they might start advertising on cartoons.

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As Advertising became a necessity rather than an accessory in the 21st century, The big brands began to take over. This meant that they would have more ads in the paper, on the TV, and on the radio, making it near impossible for small town brands to compete with the much larger companies.

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In 2005, Facebook, The first major Social Media Platform, began adding ads to its apps. This marked a huge milestone for advertising and Social Media alike.

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The crazy Phenomenon that is Super Bowl commercials has been around for a while. While they weren't near as exciting at the first Super Bowl as they are now, The commercials are necessities for Big companies. In fact the average viewer ship for the 2015 Super Bowl was 114.4 million people. This means that Ads during that game alone reached all over the world, making it so clear why these spots are milestones in the Advertising world.

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Today, the ad revenue for all printed things like newspapers and flyers has decreased dramatically, however audio-visual and digital advertising has and still is booming, gaining more and more revenue every second.