This quote comes from the movie ‘Red, White & Royal Blue’. The movie is based on a novel of the same name written by Casey McQuiston. | Red, White & Royal Blue is produced by Amazon Studios
Movie vs. book
In the novel Alex and Henry have a conversation about “making history” before they go to the museum. Similarly to this, Henry in the book asks Alex to wait for him to try figure out everything, to which Alex replies: “I’m into making history.”
The actual line “History, huh?” in the book is in the emails Henry and Alex were sending each other and chronologically it happens earlier than in the movie.
Fun fact, the line “History, huh?” is later in the book used by supporters of Alex & Henry after they relationship is leaked. Alex sees some teenagers wearing T-shirts with this quote written on them. And later June is wearing one from a store.