First released in 1983, My Little Pony is a Hasbro brand that is still released to this day, albeit with quite a few changes along the way.
The community (and the company itself, now) refers to these changes and reboots as "Generations", and you can find my collection divided both by generation and by release year.
I have been collecting MLP since late 2010. My first ponies were G4 Blossomforth and Starbeam Twinkle! We owned some ponies that we shared among my siblings in the Butterfly Island era.
(Note: MLP is my largest collection! This will likely take me a long, long while to completely update. Thank you for your patience!)
Currently, working on the first link.