Bitcointalk's historical important changes
The most iconic bitcointalk threads. History on Bitcointalk.

I guess that will be enough for a good read even for a week or even shorter than that if you want to. If you want to sort out reading the most merited topics or should I say exceptional as well here on the forum then better you visit this Bitcointalk Merit Dashboard of Ddmr2x. I hope I'd give enough good readings for you.