Which event describes Solon's contribution to the city-state of Athens? the founding of the Delian League

the construction of the Parthenon

the victory over Xerxes' Persian fleet

the establishment of courts with juries

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.