² sn The 100 measures here was 100 cors. A cor was a Hebrew dry measure for grain, flour, etc., of between 10-12 bushels (about 390 liters). This was a huge amount of wheat, representing the yield of about 100 acres, a debt of between 2500-3000 denarii.

² sn Nineveh was the last capital city of ancient Assyria. Occupying about 1800 acres, it was located on the east bank of the Tigris River across from the modern city of Mosul, Iraq. The site includes two tels, Nebi Yunus and Kouyunjik, which have been excavated on several occasions. See A. H. Layard, Nineveh and Its Remains; R. C. Thompson and R. W. Hutchinson, A Century of Exploration at Nineveh; G. Waterfield, Layard of Nineveh. Preliminary reports of limited excavations in 1987 and 1989 appear in Mar Šipri 1:2 (1988): 1-2; 2:2 (1989): 1-2; 4:1 (1991): 1-3. Also see D. J. Wiseman, “Jonah’s Nineveh,” TynBul 30 (1979): 29-51.

¹ sn Babylon was a city covering over a thousand acres that was surrounded by two walls, the inner one 21 feet (6.3 m) thick and the outer one 11 feet (3.3 m) thick. To provide the city further security, other walls were built to its south and east, and irrigation ditches and canals to it north and east were flooded to prevent direct access. The “fords” were crossings for the Euphrates River, which ran right through the city, and for the ditches and canals. The “reed marshes” were low-lying areas around the city where reeds grew. Burning them would deprive any fugitives of places to hide and flush out any who had already escaped.