West Ham midfielder James Ward-Prowse was delighted with victory at Arsenal.
The Hammers won 2-0 thanks to goals from Tomas Soucek and Dino Mavropanos.
Ward-Prowse said: "It's great to be part of a historic win for us.
"Before I joined the club I saw it as a hardworking club and that marries with what I believe as a footballer. That was key today too.
"It's been fantastic. I have worked under a lot of managers now and gained experience. Working under the gaffer is brilliant for me and I've learned new things. It's fantastic to be part of this team.
"I think we have given ourselves a good start. We don't want to get carried away.
"I think the club has had that taste of success and you want to build on that. I would love to get back into Europe and prolong our European journey. We have had a really good start to the season and we don't want to get carried away with it.
"We will enjoy the New Year's celebrations in the right way and get ready to go again."