It was groundbreaking because it was funny and educational and approached modern topics in a way that was accessible to children, yet it wasn't offending anyone. It was one of the first show whose educational effects on children were studied and it is considered to be a very positive show and a good thing to watch. The long term impact is that it created a legacy of a hundred million people watching the show in their lifetime, usually when children.
The actor you're looking for, and who has indeed written down his name in history as being a famous actor that was also involved heavily in charitable work and auto racing was Paul Newman.
In 1929, ongoing economic issues led to the stock market crash in the United States of America. This was the first signal for the coming Great Depression. The Wall Street crash happened in the month of October. This not only created economic problems for the United States but also for the European countries.<span />
<span>American Imperialism is the true economic, military, and cultural influence of the united states on other countries. such influence also goes hand in hand with expansion into foreign territories. Expansion on a grand scale is the primary objective of an empire, a notable example being the british empire. The concept of an American Empire was first popularized during the presidency of James K. Polk. </span>
Thomas Jefferson didn't consult with Congress before deciding to buy the Louisiana Purchase