Neptune's windy atmosphere in August 1989. The ice giant Neptune was the first planet located through mathematical predictions rather than through regular observations of the sky.
well slavery was an big issue because it separated the northern and southern states. the northern states realize that slavery was an unnessary inhumane treatment and wanted to abolished it. While the southern states depended on slaves since they worked for free on their plantation. To resolve this they counted 3 free men for 5 slaves until 1808.
In March 1839, a New York abolitionist newspaper called for a convention to unite the efforts of national anti-slavery forces from around the world.earn more about Benjamin Robert Haydonâs painting of the convention at The National Portrait Gallery. Delegates to the 1840 convention in London were united by the common goal of ending slavery in their time.