[9] During an interview, Lund and Jansen explained that the band is named after Georges Lemaître, a Belgian priest who first proposed the Big Bang theory and derived the physics concept now referred to as Hubble's law.

[10] In a 2014 music discovery piece with Interview magazine,[11] Jansen further added "Le maitre" means "the master" in French, though the pair were unaware of this when first choosing a name for the project.

[17] In January 2014, the duo signed to Astralwerks Records: home to notable acts, including Daft Punk, whom Lemaitre has previously referenced as a significant source of inspiration for the group's music style.

[19][20] Furthermore, Lemaitre mentioned that the 'choice [to join Astralwerks] felt right', especially given that the label was home to some their own "sonic heroes", namely Daft Punk and The Chemical Brothers.

[6] The name "1749" was inspired by the home[22] Lemaitre has been living in during their time in Los Angeles—which also serves as a low budget–home studio for the pair.

[23] Following the release of 1749, Lemaitre embarked on a short 7-city European tour during February, including a stop in their homeland in Oslo, Norway.

During this time, the music video for the song "Stepping Stone" featuring artist Mark Johns, a member of Skrillex's Owsla creative collective, was released on 18 February 2016.

The song "1:18" from Lemaitre's debut EP, The Friendly Sound appeared in Apple's product advert "Designed Together",[27][28] which showcased the then newly released iPhone 5c's fluent integration with the iOS 7 mobile operating system.