1. 1345 (recorded in annals)
    Cryptids ★★★★★ Iceland

    Lagarfljot Worm

    A serpent-like cryptid said to live in Lake Lagarfljot in eastern Iceland. It is recorded in 14th-century annals. In 2012, a video said to show it swimming in undulating waves across the lake was released, causing a worldwide sensation.

  2. 1577 (record)
    Cryptids ★★★★★ United Kingdom

    Black Shuck

    A giant black dog with fiery eyes from the folklore of eastern England. A record survives of it appearing in churches and attacking people in 1577. It is the leading example of Britain's many "black dog" legends.

  3. Middle Ages onward
    Cryptids ★★★★★ Russia

    Brosno Dragon

    A dragon-like cryptid said to live in Lake Brosno in Tver Oblast, Russia. Legend says it swallowed Mongol soldiers in the Middle Ages, and sightings came one after another in the 1990s as well.