Which AP was the first for the PFRPG?

[Milo v3]

Which AP was the first paizo Adventure Path made for the Pathfinder RPG rather than 3.5?

[Psyren]

According to the wiki, Council of Thieves (http://pathfinder.wikia.com/wiki/Council_of_Thieves_(adventure_path)) has that honor. It fits the timeline as well (August/September 2009, roughly the same as the CRB.)

[Vhaidara]

Yeah, I was going to say RotRL, but I think that actually predates F's full publishing. The copy I was given of Burnt Offerings when asked to GM it still references things like Spot checks.

[Milo v3]

The copy I was given of Burnt Offerings when asked to GM it still references things like Spot checks.

I only noticed it wasn't for Pathfinder RPG when one of the NPC's had levels in a 3rd party 3.5 class...

[Vhaidara]

I only noticed it wasn't for Pathfinder RPG when one of the NPC's had levels in a 3rd party 3.5 class...

That would also explain why that class wasn't on the PFSRD, Oh well, I had to convert them all to Spherecasting anyways.

[Firest Kathon]

Rise of the Runelords was originally for 3.5 (http://paizo.com/pathfinder/adventurePath/riseOfTheRunelords), but has since been reprinted for Pathfinder (http://paizo.com/products/btpy8tc0?Pathfinder-Adventure-Path-Rise-of-the-Runelords-Anniversary-Edition).