Misc: What was the 57 mile long Marcia built by the romans?

Questions

-isms: The belief in living a very austere and self-denying life.?

A clip, shaped like a bar to keep a woman's hair in place is a _______.?

A depilatory is a substance used for removing _______.?

A device used to change the voltage of alternating currents is a ______.?

A flat, round hat sometimes worn by soldiers is a _________.?