Answer: The rise and popularity of radio caused a new approach in advertising
Answer:
US Population Rank US Pop Rank City 1920 Population 41: San Antonio: 161,379 42: Dallas: 158,976 45: Houston: 138,276 65: Fort Worth: 106,482 89: El Paso: 77,560.
hope it helped :D
Answer:
A creeping bombardment, first employed at the Battle of the Somme, featured artillery fire going forward in stages only ahead of the advancing infantry. ... The plan demanded correct timing for both the heavy artillery and the infantry to function. Failure to do that would result in their own troops being killed by artillery.
I think the answer you may be looking for is he invented the printing press. His most famous accomplishment is the Gutenberg Bible. He is known as the father of printing. However, if you research it, you'll find different results, such as the Chinese beat Gutenberg by a full thousand years in that they invented the first printing press.