The Trans Saharın trade route was in use for at least 800 years.
Do you agree or disagree?

I agree, because they started using this in the 8th century and ended in the 17th century and a century is 100 years. So if you add it up they used it for 900 years.

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