The Kemmu Restoration was a period of Japanese history that occurred from 1333 to 1336 AD. It marks the three year period betweem the fall of the Kamakura shogunate and the rise of the Ashikaga shogunate, when the Emperor had re-established Imperial control.
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... who assumed power for any period of time without a legitimate basis of authority.
The first to have the title of "Tyrant" was Pisistratus in 560 BC.
In modern times ...