The term 'mezoil era' could refer to either the Mesolithic Age or the Zemene Mesafint period.
The term 'mezoil era' seems to be a typo or an error in spelling. However, based on the information provided, there are a couple of possibilities:
There is a term called 'Mesolithic Age' which refers to the period between the Paleolithic Age and the Neolithic Age. This period is known as the 'Meso' (Middle) 'Lith' (Stone) ic period and is characterized by the warming climate and the recession of glaciers in Northern Europe.
There is also a period called 'Zemene Mesafint' or the 'Era of Judges' which occurred in Ethiopia from 1769 to 1855. This period was marked by a decline in the authority of the ruling dynasty and the rise of regional warlords.
Without further clarification, it is difficult to determine the exact meaning of 'mezoil era.'