In the nullification Controversy, some southerners took the position that... a) The federal government had the right to nullify the state laws interfered with the right to hold property in slaves.
b) The Federal courts had the right to nullify acts of Congress that restricted the spread of slavery in the territories.
c) Congress should refuse to receive any petitions against slavery.
d) The states had the r get to nullify acts of the federal government thy seemed to be unconstitutional.

isaac newton first proposed that earth was not perfectly round. instead, he suggested it was an oblate spheroid—a sphere that is squashed at its poles and swollen at the equator.

the idea of the earth being a flat disc is also inconsistent with the fact that a given lunar eclipse is only visible from half of the earth at a time. the only shape that casts a round shadow no matter which direction it is pointed is a sphere, and the ancient greeks deduced that this must mean the earth is spherical.

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explanation:

we pointed them north: recollections of a cowpuncher by e.c. “teddy blue” abbott tells us of the history of nomad cowboys in north america. as the   frontiers began moving west, trails of cowboys of the 1870s and ’80s drove herds of cattle from texas to the northern ranges and railheads, and then rode back south to do it again. they gradually pushed   native americans out of their lands, until in 1889 the   government transferred white   colonists the indian land.