If the Duke and Duchess of Cambridge wondered whether the telegraph machine at the MacBride Museum would autocorrect any mistakes before it transmitted their Morse code message to Twitter, they can rest easy.

The couple’s telegraphed message appeared online at 9:30 a.m. today: “The Duke and Duchess of Cambridge, September 2016, Whitehorse Yukon”, it read.

Theirs was the first message to be sent from the office in 80 years.

The Telegraph Office was erected in Whitehorse in 1900 to offer a rapid and reliable communication system during the Gold Rush. It served as the Telegraph Office for 27 years.

The building jumped a few decades into the future this week by offering a new online guestbook for the MacBride Museum of Yukon History.

The Royal tweet is the first entry in said book, located on twitter at @telegraph_tweet.

The morning Twitter session was just was one of many stops for the Duke and Duchess on Wednesday morning.

It was also part of one of the few events open to the general public during the couple’s fewer-than-24-hour stay in the territory.

Because of this, Yukoners started to line the streets before sunrise.

Metal barricades mapped out the route the royals would take through downtown Whitehorse as part of an early-morning festival that drew thousands of people to the city core.

Kids stood behind them dressed in snowsuits. Ladies wore fascinators and feathers instead of toques.

Parents waved Canadian flags and put children on their shoulders for a better look.

One couple was dressed in full royal regalia, including plastic crowns, robes and sashes.

Some youngsters held flowers, gifts they’d brought for the Duchess.

When the royal motorcade arrived at the museum at around 9 a.m., the crowd cheered.

Together, the couple exited their car.

Kate wore a red knee-length dress coat, black heels, and carried a red clutch, while William wore a dark sweater and sport coat, with dark trousers.

They entered the Front Street museum’s front door, waving and smiling.

They were accompanied on a half-hour tour of the museum by Yukon MP Larry Bagnell and Commissioner Doug Phillips.

Inside, they also met with children participating in the indigenous language program from the Dusk’a Headstart Early Learning Centre.

After sending their tweet, Prince William and Kate exited the Telegraph Office and continued down Front Street to the Healing Totem, where they met with a young carver, and members of Bring Youth Toward Equality (BYTE).

From there, they turned up Main Street, waving as they made their way to a display of the work of young artists. Throughout the procession, they smiled and laughed easily with those they met along the way.

Kate accepted a few bouquets from kids along the festival route.

Once the couple reached Second Avenue, they were met by the motorcade that took them to Carcross for an afternoon full of events.