The nostalgic images show horse-drawn trams making their way up a major shopping street, children paddling on the beach at a famous seaside resort, and the Titanic’s sister ship gliding out to sea for the first time.
They are some of the best photos taken around Northern Ireland between 1900 and 1949.
They range from the devastating aftermath of a Second World War bombing raid in 1942 to fishermen in a pretty coastal village discussing what to do about a glut of herrings in 1935.
Famous races of the era are shown too, including one for which sandbags have been installed outside shops to protect spectators from the cars whizzing round the streets.
What do you think of how Northern Ireland has changed over the last 100 years?
Do you have retro pictures or nostalgic memories to share with us? Send them online via YourWorld at www.yourworld.net/submit. It's free to use and, once checked, your story or picture will appear on our website and, space allowing, in our newspapers.
9. Fishing boats
Fishing boats in Ardglass harbour, County Down, in around 1925 | Getty Images Photo: Alfred Hind Robinson/A H Robinson/Hulton Archive/Getty Images
10. Old Reliable
The launch of the 883-foot-long White Star liner Olympic from the Harland and Wolff yard, Belfast. Known as 'Old Reliable', she was the sister ship of the Titanic and Britannic | Getty Images Photo: Topical Press Agency/Hulton Archive/Getty Images
11. Bomb damage
Bomb damage in Belfast during the Second World War, on March 13, 1942 | Getty Images Photo: Keystone/Hulton Archive/Getty Images
12. Steamers
Belfast and County Down Railway Co steamers Slieve Donard and Slieve Bearnach moored at Queen's Bridge, Belfast, in around 1900 | Getty Images Photo: Hulton Archive/Getty Images