The Incas were highly advanced in terms of mathematics and
astronomy. Their unique architecture of
massive stonework is made possible by their great understanding of mathematics.
Inca structures where made of precisely hewn stones that fit together so
perfectly without use of mortar. They also understood astronomy and made very
accurate calendars.
If I am not mistaken, it was the space program also know as the Apollo Program a.k.a Project Apollo
Charisma and propaganda--Reagan knew how to reach his audience and convince the American people they were in a state of danger and he had been able to keep them safe.
The Reagan administration focused on Cold War tactics first convincing American citizens they were unsafe in a world with communism and the USSR. He then developed military focus and propaganda to prove his leadership was keeping Americans safe. This with large tax breaks and a sense of conservative 'normalcy' made him very popular with the majority of white America.
A statesman named Solon who made the laws prohibited the enslavement of debtors.
