It was probably at this time that Syria threw off the yoke of tribute to Israel (see JEROBOAM II), as when next we meet with that kingdom, it is under its own king and in alliance with Samaria ().
The 10 years of rule given to Menahem () may be taken to include the few months of military violence under Zechariah and Shallum, and cover the full years 758-750, with portions of years before and after counted as whole ones. The unsuccessful usurpation of Shallum may therefore be put in 758 BC (some date lower).