Diocletian and Constantine were famous as the people who completely reformed the military system and created a new system of government, which gave new life to the late roman empire.
<span>the rise in the popularity of music videos affected the radio industry in a positive and negative way... Wider ranges of music became memorable for more than just the sound, and easily accessible, the next best thing to being there live to see your favorite artists... This broadened the types of music radio stations played, with it came a double-edged sword in the form of dedicated music television channels, which went on to multiply many times until tv has become saturated by clones... Radio must try harder than ever to remain engaging, going beyond just playing music.</span>
The major developments in transportation were that overland transportation was improved by the creation of the National Road, the speed of water transportation was improved by the steamboat that made it easier to travel against the current, new canals provided efficient water transportation that linked farms to expanding cities, and railroads were built which cost less to build, could scale hills easier, moved faster than ships, and carried more weight.
This let people travel further distances for work. Leading to more towns staying stable as if people lived in one location they could take the rivers or railroad to get to the work camps and such. As prior to these developments people had to move where work was located this wasn’t required anymore. As well as this gave thousands of jobs and let jobs be more stable.
Black Friday is most associated with Jim Fisk and Jay Gould.