RFC 2026The Internet Standards Process -- Revision 3. Scott O. Bradner[?]. October 1996. (Format: TXT=86731 bytes) (Obsoletes RFC 1602[?]) (Also BCP0009) (Status: BEST CURRENT PRACTICE)
... 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 ...