Al Sabah-ruled sheikhdom on the northwestern Persian Gulf coast, an Ottoman-nominal then British-protected autonomous emirate before full independence.
Became a British protectorate in 1899 (Anglo-Kuwaiti Agreement) while retaining internal autonomy; achieved full independence on 19 June 1961, continuing as the modern State of Kuwait (already canonical, id: kuwait).
The atlas holds 3 border frames for Sheikhdom of Kuwait — the shape you scrub through changes in 1752 · 1926 · 1942.
Verified via Open Library; already used as the reading entry for the existing canonical Kuwait record, covers the pre-independence sheikhdom era in its early chapters.