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.
1. Esplanade
The Esplanade, Bangor, County Down, viewed from Central Hotel, in around 1900 | Getty Images Photo: Hulton Archive/Getty Images
2. Horse-drawn trams
Castle Place, Belfast, in around 1905, with horse-drawn trams and hackney cabs | Getty Images Photo: London Stereoscopic Company/Hulton Archive/Getty Images
3. Promenade
The promenade at Warrenpoint, County Down, Northern Ireland, in around 1920 | Getty Images Photo: Hulton Archive/Getty Images
4. Pretty gardens
Gardens in Armagh, Northern Ireland, in around 1930 | Getty Images Photo: Hulton Archive/Getty Images