Answer:
The minimum land sale was set at one square mile (640 acres), and the minimum price per acre was $1. (Congress hoped to refill the treasury by land sales in this region, but the requirement of $640 in cash eliminated many potential buyers).
The new weapons that they made.
Answer:
In this way the spectroscope demonstrated that the gases in the Sun and stars are those of common elements such as hydrogen, helium, iron, and calcium, but at temperatures of several thousand degrees.
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A female candidate (Sarah Palin) was running for vice president, but this was not the first time, for example Geraldine Ferraro run for vice president in 1984.
It was significant because It marks the first time a major political party has nominated an African American for its presidential candidate. This candidate also later won and is today's president!
