Complex sentence: The primary chronicle is numbered 21901 translated by CJ Gadd in 1923 and found in the British Museum, by the Babylonian tradition set down by Herodotus much later, a Hebrew tradition attributed to Nahum, and by reference in Egyptian chronicles, all were hostile to Assyria.
Split into simpler sentences: The primary chronicle is numbered 21901 translated by CJ Gadd in 1923 and found in the British Museum. By the Babylonian tradition set down by Herodotus much later, a Hebrew tradition attributed to Nahum, and by reference in Egyptian chronicles, all were hostile to Assyria.