Western frontier life
Last frontier
Because the characters are flawed and larger than life.
The sugar act was the first tax on the American colonies imposed by the British Parliament.
~I hope this helped~ :)
Multiple factors were involved in the decision of exploration of Mars.
Mars is similar to Earth in size and it is the next planet. Moreover, evidence was present to suggest that liquid water existed, and may possibly still exist, on Mars. All of these factors led to the planet's exploration.