What were the major milestones in rights for african-americans during the 19th century?
a. the decision in dred scott v. stanford
b. the decision in plessy v. ferguson
c. the passage of the thirteenth, fourteentg, and fifteenth amendments
d. the abolishment of jim crow laws

In a story containing the following points, which would likely occur last?

What important discovery was made by edmond halley and alexis clairaut, using newton's ideas of mathematics and gravity? they created the scientific method to outline how science should be conducted. they were able to find the orbit of a comet and predict the year of its return. they discovered the three newest planets--uranus, neptune, and pluto. they explained why objects appear to have color.

Horace mann worked to establish a.) a new electoral system. b.) a public education system. c.) penitentiaries. d.) asylums.