The correct answers are map making, compasses, and square sails .
Map making made significant progress during the Age of Exploration (when Europeans were sailing to Asia). Thanks to maps that accurately included North and South America and their separation from Asia, sailors were better able to navigate their way around the globe.
Compasses also helped tremendously. These devices helped sailors to find their bearings and assess what direction they were heading.
Lastly, square sails helped in the process of traveling from Europe to Asia. During this period, caravels became ships developed by the Portuguese. These easily movable ships often used square sails as a means to direct their boat.
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Answer:
With the gold rush lots of people moved to California with so many people in California the question of California becoming a stage came up. So the many wondered was California going to be a slave state or a free state. If California became a free or slave state there would be a imbalance in power between the two factions.
Answer:
They were harmful to the territory that the discovered because unlike the indigenous and aboriginal troops who used ONLY what the needed. The European explorers took whatever they wanted, and cleared many thriving forests to build cabins and such.
