The royal's account following has since doubled and now stands at 2.4million followers at the time of this report.
But now Meghan and Harry have fed a very crucial bit of content to the eager masses while we await more details about their marital bliss: The Duke and Duchess of Sussex have launched their own joint Instagram account.
Prince Harry and Meghan Markle's new Instagram account has gained over 2.4 million followers just 24 hours after it was created. "'Welcome to our official Instagram; we look forward to sharing the work that drives us, the causes we support, important announcements, and the opportunity to shine a light on key issues", they wrote alongside a click-through slide show of images featuring the couple over the years.
The account, which was opened Tuesday, reached the one-million mark in under six hours, easily beating a record held by Korean pop sensation Kang Daniel.
About an hour after the couple's account launched, Instagram "partially crashed, preventing most users from being able to follow the account on first clicking the follow button", according to journalist Benjamin Wareing.
During his visit, Harry learned about how the YMCA, in the London suburb of South Ealing, is supporting young people in the area and took part a roundtable discussion convened by The Royal Foundation's "Heads Together" campaign - the mental health initiative spearheaded by the royals.
As we approach Meghan's due date, we have some idea about the birthing process, potential names and titles - but we'll have to wait to find out where Meghan chooses to give birth, and when the public will be introduced to Baby Sussex.
Mullins predicted that should baby Sussex be a little prince, he would bear Prince Harry's blue eyes and darker hair.
Following the flurry of excitement, Royal watchers noticed Kate and William's social media managers had been active on Twitter and Instagram too.
Now, the royals "are hoping Meghan obeys the rules or else the [new] account will be removed from her", said the source. News. This move also comes shortly after Buckingham Palace, Clarence House and Kensington Palace published guidelines for interacting with the royals via their official accounts.
"Why Kensington Palace is now exclusively dedicated to the Cambridges is a little unusual - I would have thought a new Twitter account would have been created at the same time so the Sussexes aren't homeless on Twitter".