A History of the Ship's Compass

Mechanical gyroscopes are beginning to be replaced by ring-laser or hemispherical-resonator ones, but most ships retain a traditional magnetic compass as a backup—just in case. 

Magnetic Compass - National Maritime Historical Society

How the Compass Helped Columbus - Lesson

The Ship's Compass – A History

The History of the Compass - Dalvey

Navigation and Related Instruments in 16th-Century England - Fort Raleigh National Historic Site (U.S. National Park Service)

ship's compass - AbeBooks

History of the compass - Wikipedia

MARINE NAVIGATIONAL COMPASS HISTORY

A History of the Ship's Compass Naval History Magazine - December 2022, Volume 36, Number 6