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.
5. Round-the-houses race
Racecar drivers WE Baird (No 8) and LP Driscoll (No 9) during practice for a round-the-houses race, as spectators line the streets, with sandbags providing a 'crash barrier', in Bangor, County Down, Northern Ireland, on June 21, 1935. The Ulster Automobile Club organised the race. | Getty Images Photo: Fox Photos/Hulton Archive/Getty Images
6. Factory floor
Workers on the factory floor of the Belfast Ropework Company in around 1910 | Getty Images Photo: Hulton Archive/Getty Images
7. Sprint start
Drivers run to their cars in a Le Mans-style start to the RAC International Tourist Trophy Race, at the Ards circuit, Belfast, Northern Ireland, on August 17, 1929. (Photo by Fox Photos/Hulton Archive/Getty Images) | Getty Images Photo: Fox Photos/Hulton Archive/Getty Images
8. Coastal view
Warrenpoint, County Down, Northern Ireland, in around 1920 | Getty Images Photo: Hulton Archive/Getty Images