First Age 50
From Tolkien Gateway
First Age 50 (abbreviated to F.A. 50) is the 50th year of the Sun of the First Age of Middle-earth.
Notable events in this year include:
- Turgon and Finrod, sleeping beside the Meres of Twilight, receive a dream from Ulmo. The dream urges them to seek places of hidden strength against Morgoth.[1][2]