Centuries
From Oberon_wiki
'Centuries' is the name given to the most recognisable organisational unit of the Imperial Army and form part of a 'Cohort', of which 'Legions' are comprised.
'Centuries' (and this both the singular and plural form, to distinguish from 'Century' - a period of 100 year) are made up of 10 'Contubernia'. Hence 'Centuries' comprise of:
- 10 x 8 ordinary men (Legionaries)
- 5 Decurians (Junior officers)
- 2 Centurians (Senior officers)
- Up to 10 ancillary staff (cooks, fletchers, farriers, blacksmiths, etc.).
In total then, 'Centuries' are comprised of about 100 men, which is where the unit derives its name.