The archipelago<span> consists of 6,852 islands ("island" defined as land more than 100 m in circumference), of which 430 are inhabited. The four main islands, from north to south, are Hokkaido, Honshu, Shikoku, and Kyushu; Honshu is the largest and referred to as the </span>Japanese<span> mainland.</span>
Ptolemy's system of latitude and longitude helped in mapmaking
He proposed the Fugitive Slave Act in 1850, which was to send back runaway slaves from which who escaped from the southern states to the north. As this was a add onto the older laws this law punished officials who did not capture runaway slaves and bring them back to the southern states. In 1855 was found unconstitutional and was Nullified
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Why
Explanation:
He showed because he had changed the era of using lamps and to use light bulbs he and his fellow scientist.
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He described the elliptical orbits of the planets.