President franklin d. roosevelt got sick in 1921. his disease was very damaging and kept him from for the rest of his life.

Im pretty sure if was walking since FDR had polio.

acid rain is the answer

one way archaeology us understand the past is through the material objects it finds, allowing us to know what was being used, and when. for example a dig recently found a flute, believed to be the oldest musical instrument found to date.

i hope this