The Museum is an office that is should have been opened Animal Crossing Bells. In Museum you can recognize fossils and give fish, bugs, and fossils. While it isn't clear how to open the historical center in New Horizons. It is conceivable that players can open the Museum essentially after an extraordinary visit from NPC Blathers, as demonstrate by the Direct notice of "traveler" visits showing player new aptitudes.
So you start by giving either five fishes or five bugs to Tom Nook after which he permits you to put a tent for Blathers.
This will be the Museum so plan before keeping it as you won't be moving it for quite a while. Converse with Blathers the following day and he approaches you for 15 gifts www.lolga.com. Four days after this the Museum will be fabricated.