You know, once upon a time I really did have this all written out somewhere....I think it was posted over on e.a.r....
Anyhow.
Seerow's Kindness results in a Yeerk uprise in 1966
Hork-Bajir invasion begins 1968, ends 1969/1970
Sometime between 1970 and 1975 the Yeerks make a deal with the Taxxons and set up a base on their world.
The Andalite Chronicles begins 21 years before The Invasion. That would be 1975. This is they year that the Yeerks discovered humans and that Edriss went to Earth and began to establish stuff there. During the time from approximately 1975 to 1994 Edriss is in charge of Earth. Sometime in 1994/1995 control over the operation shifted to Visser Three and Edriss left Earth, resulting in Eva's "death". 1996 is when the Animorphs begin to fight.
As for the timeline of the main series, it's a bit more convoluted.
Generally, books 1-3 occur during about a months time. Book 15 or 16 marks the one year point.
The issues with David come shortly after the one year point, and I'm guessing the two year point hits around book 30, leaving books 31-54 to take place during the remaining time.
The final story arc probably occurs over maybe a month, tops, I think.
Terenia, awesome work on the timeline you created there. It's really valid.
It's unreal how the Andalite X Yeerk conflict feels, to my senses, like it's centuries old, but even in my calculations, I realized it's decades. Like, it never felt to me like the Andalite Chronicles happened 20 or so years before #1. Elfangor would have been old when he crashlanded on Earth, but you just proved I was always wrong to think that he was 100 years old.
I kinda like the ambiguity with the time in the Animorphs series. The fact that you don't know what season it played in, it's all up to us, the readers, referring to our Principle of Closure.
PS: I reckon MM#1 had a holidays kinda feel to it.
yeah, I'm from California....seaso ns don't vary too much... but it's alright! 
Hey,
Azguard, random question.
Since you are from California, could you point me to some site or are you able to send me decent photos of locations in California. I am seeking to start collecting random images of where I could see as the Animorphs' town. Like: Houses, subdivisions, parks, High Schools, landmarks, downtown, high rise buildings...
Like, is there a big Mall complex you could see being the one Rachel and the others frequented?!
