I understand that item level determines where an item can drop (act/difficulty) and what affixes it can have, but I am having trouble finding information that clearly states the following:
The earliest act/difficulty where you can find each item level, and
The item levels for each range of each affix.
For the former, I have only found information about ilvl 60 - 63 but I would like information for all item levels. For the latter I have only found this page linked on another question, but it's not clear where each "tier" of affix can drop.