The History of Taylor Swift and Calvin Harris' Relationship on Instagram

"#tbt Last February's#ellestyleawards when I snapped@elliegoulding introducing @taylorswift to@calvinharris for the first time (with a cameo by @samsmithworld ) Happy anniversary, you two kids! 🎉🎉🍾🍾😘😘 2/24/15 #taylorswift #calvinharris#elliegoulding #samsmith" And so it begins.

"Cause we never go out of (Elle) style (awards)..... @samsmithworld"

This is from the night Taylor met Calvin Harris, mutual friend/matchmaker Ellie Goulding would reveal in an interview with The Sun. "Calvin is a really great mate and he's so fantastic, and Taylor is such a cool person who I love. I thought, 'They're both really awesome and both really tall. They'll be brilliant together.'" Tay was more focused on her pal Sam originally that evening.

"Smith & Swift MISS YOU @samsmithworld"

This is the first time Calvin's name appears on Taylor's Instagram (see the background). Meanwhile, Calvin and Taylor are photographed together at Whole Foods on March 25. Outlets start to speculate they're dating. On April 2, they're photographed holding hands at a Haim concert. Us Weekly confirms they're in a relationship.

"Real love. @serayah@haimtheband @lordemusic @halstonsage"

This is taken at a vegan cookout (TRUE LOVE!) Calvin Harris and Taylor Swift co-hosted for their friends in L.A. Calvin may be taking the photo, but his own Instagrams from the same event (with Haim and Ellie Gouldingin one pic; Taylor's cats in another) confirm they're in the same place. Tabloids later give more detail about the party. "He surprised her and organized the whole night," a source told Us Weekly. "He even planned the menu!"

"Moment"

This is the first time any direct sign of Taylor—in this case, her cats Meredith and Olivia Benson—is on Calvin's Instagram feed.

"Swan goals"

This is it: The first time Calvin appears on Taylor's Instagram and the way Taylor confirmed their relationship to the world wide web.

Calvin documents cat-sitting Meredith for the first time on his Instagram, while Taylor is away on tour.

"Little known fact: Karlie is secretly an unofficial historian/London tour guide. Kind of."

Calvin makes his second appearance during a London double date with Gigi Hadid and Joe Jonas (RIP, G.I. Joe). Karlie plays fifth wheel.

"She cooks too 🔥🔥🔥"

Calvin posts the first hint that he and Taylor are spending the Fourth of July together. This is also the first time Taylor herself appears in his feed. Two weeks later, Calvin will break his silence about the relationship to the press. "It's going absolutely fantastic," he tells KISS FM UK while doing an interview for his new single. "It's interesting, because obviously there's different things written about it every day and even if we don't do anything publicly for a while, someone will make something up. For me, it could be a lot worse, and I'd still be like insanely happy with her. So, I'm good with it." Of Taylor, "it's boxes I didn't even know existed, she ticks," he tells HITS Radio. "It's really ridiculous [all of her talents]...She's generally an incredible cook and human being."

Calvin and Taylor have a weekend-long Fourth of July party at her Rhode Island house. For the first time, Calvin is tagged in her Instagram.

"Swan squad."

Calvin and Taylor do swan goals, part 2, this time with Taylor kissing his cheek.

"Some of my best memories have been with this girl, laughing in the kitchen. Happy Birthday to the ray of light that is @karliekloss."

Calvin makes a cameo (and arguably upstages Karlie) in Taylor's birthday tribute to her bestie.

While Taylor is off with Gigi Hadid, attending a surprise birthday party for Gigi's boyfriend/Taylor's ex Joe Jonas, Calvin Snapchats himself cat-sitting Meredith and Olivia.

"Olivia Benson chewing on Olivia Benson's moon man because she is disrespectful. So glad @therealmariskahargitay took it home and away from this monster. Photo credit: @calvinharris"

Months go by with Taylor on tour and no new Insta of Calvin. Some sketchy tabloids report Calvin and Taylor are over in October. The pair shut down the rumor on Twitter. Weeks later, Taylor gives a nice photo credit to Calvin to confirm everything is still very much okay between the two.

Taylor has that quiet celebration of her 26th birthday at a Christmas-themed, shared birthday party. No squad member is there, just Calvin.

"☃"

With two Instagrams, Taylor visually announces Calvin is taking a big step in his relationship with her: Spending the holidays with her family (and building a snowman with her brother Austin during.)

"Really proud of ourselves over here."

Meanwhile, Calvin tags Taylor in his caption-less, winter version of their "swan goals" summer photo to confirm they are going strong.

"Minding his own business. Quietly putting in work. Inspiration for 2016. This fucking guy"

He also posts the snowman.