Washington gladdens ideas would mostly closely be tied to which period in the us history a. great depression b. civil rights movement c. progressive movement d. reconstruction e. civil war

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