The Netherlands (literally the low lands) began as a group of provinces (’lands’) banding together. The most famous one on (a global scale at least) is Holland , because that’s were Amsterdam is and the VOC is from for example. Another big player back then was Zeeland (you likely only know New Zeeland, but this is the og one). Aside from Hol_land_ and Zee_land_ there are other lands in The Netherlands and the people from those regions typically prefer The Netherlands over Holland. Nobody cares enough that they would take issue with it, but many care enough to want to explain it to you.