#Rather than the imo silly division of the year 2k

[bonefall]

If you’ve already answered this then no worries, but what would the typical clan cat lifespan be then (assuming they don’t die prematurely from injury/illness). Just curious as to how many generations have passed since the clan’s founding in the 80 or so years.

Clan cat lifespans can be pretty variable! They're considered senior warriors at 5, but if all works out their lifespan is often 16 years. Kittens usually enter the picture for a parent who is 2 to 8 years old, but they COULD have them anywhere between 1 to 15.

Clan cats play less attention to raw age than to EXPERIENCE, though. It is socially discouraged for a fresh warrior to become a parent, and you are NOT an adult until you're out of apprenticeship. They see age like this;

Child: Less than 6 full moons SEEN. If a kitten's eyes were not opened when the first moon of their life passed over them, that is not a month they were alive.

Adolescent: The amount of time you are an apprentice. Flamepaw was considered a child while his sister was an adult.

Young Adult: The first full year out of apprenticeship, when you've handled a full year on your own. A warrior is only eligible for an apprentice after this length of time, so by extension a cat COULD be a mentor around age 2 (BUT that's considered young. 3 is a better bet.)

Adulthood is even more variable, because you're usually not considered "aged" until you've had an apprentice or a litter and you're around 5 years old. Without either of those things, you often won't be considered a "senior warrior" until you're as old as 8.

So to answer your question directly, you can comfortably estimate a new crop of warriors about every 5 years, and full population turnover every 15. Between the numbers, 8 is a good estimation of how long it takes for a generation to pass

(Though I'm more partial to historic events and time periods than crunching numbers like that)

Elders can hang on for a LOOONG time though-- One-eye over in ThunderClan was a personal friend of Pinestar and witnessed the Crusades before passing away at the tender age of 20-something.