The language was on the decline in the early 20th century, as it was being slowly replaced by Amharic. During Operation Solomon, most of its remaining speakers were airlifted to Israel, where it continued to lose ground to Hebrew.
Several early Falashan manuscripts, using the Ge'ez alphabet, exist; in more recent times, the language has been recorded by several linguists and travellers, starting with Flad in 1866.
"Kaïliña – a 'new' Agaw dialect and its implications for Agaw dialectology", in Voice and Power: The Culture of Language in North-East Africa, R.J. Hayward and I. Lewis (eds.), pp. 1–19. London: SOAS, 1996 (March). ISBN 0-7286-0257-1.