What was Fredrick Douglass contribution to abolitionism

He pressed the antislavery cause through his newspaper, the Liberator. He wrote the novel Uncle Tom's Cabin, convincing Northerners that slavery was evil. He was a former slave who spoke out against the institution of slavery

it maybe, we dont know. however lucky the lipercon seams guilty

aug 15, 2012 - although van leeuwenhoek was not the inventor of the microscope, he advanced it more he loved to grind and focus a new lens in order to see the unseen world. most of leeuwenhoek's microscopes were silver. in a simple but significant experiment (1668), he demonstrated that worms found on