Minecraft - Is there an ingame way to learn how to build a nether portal

Does the game ever teach/show you how to craft a nether portal? Or is it something you are just supposed to look up. I know the wither is "foreshadowed" by that one painting, so you could potentially learn how to summon it through that. However I cant find anything similar for the portal.


Solution 1:

Actually no, it doesn't exist. The closest would be one of the paintings showing a nether portal (but in awful resolution), I think. There's no in-game mechanic that creates one for the player to learn that it exists, or tell the player how to create one.