Roosevelt was referring to the
significance of the Battle of San Juan
as it brought an end to the Spanish American War. Lt. Col. Theodore Roosevelt
led his “Rough Riders” up the San Juan Heights against heavy artillery fire to
help end the Spanish-American War.
The North's goal was to invade the South to try to subdue their desire to secede, while the South's strategy was to defend their territory until the North gave up.
The first computer or ENIAC (Electronic Numerical Integrator Analyzer and Computer) which the University of Pennsilvania built to do ballistics calculations for the U.S. and other early computers proved to many universities and corporations that these machines were useful because They could solve problems in 30 seconds that otherwise would have taken 12 hours by hand.
For this reason, most of the first computers in the United States were purchased by universities and corporations in spite of the space ,manpower and the tremendous investment of money, they demanded in this early stages.
Roosevelt believed it was within the power of Congress to change the size of the Supreme Court. Members of both parties viewed the legislation as an attempt to stack the court.
Because, the Persians felt that their army could outnumber Greece, also because they might not have known what they were getting into when they attacked the Greek city-states. Hope that helped :D