Hideyoshi is known for being a patient man when it came to his sieges, to the point of having built temporary "cities" in front of their enemies' castle. How were these cities created?

by Van_Kaiji
Van_Kaiji

Bumping again as allowed in this: http://www.reddit.com/r/AskHistorians/comments/1e5n04/meta_a_quick_reminder_yes_you_are_absolutely/

Thank you.