Behind a plain door on a busy London street is a surprising treasure trove of UK history.
On July 22 1910, a telegraph was sent alerting the police to the location of Dr Crippen, marking the first use of wireless telegraphy in the arrest of criminals.
It towers over central London at 191 metres high. See the rise of the BT Tower in pictures.
On 15 May 1928, Mickey Mouse made his screen debut in the cartoon 'Plane Crazy'.
BT helped to give Canada House a new look by creating a display window.
As London Fashion Week draws to a close, we take a look at the stylish images from an early 1980s BT advertising campaign.
Last week’s 750th anniversary of the first elected parliament prompted BT head of heritage and archives David Hay to discover another milestone anniversary.
A famous museum is now better connected to the past thanks to volunteers from BT.
David Hay, Head of Heritage & Archives at BT, reflects on the story of the first transatlantic telephone cable.
Today’s First World War centenary recalls the courage of Post Office staff who enlisted to fight and ensured vital allied communications.
Silver helmets at the ready - this BT film from 1989 attempts to predict what the future look and functionality of mobile phones will be in the year 2009.
Ceremonies marking today’s 70th anniversary of D-Day serve as a poignant reminder of the major role played by the Post Office.
We look back at the BT Hawk, the UK’s first cordless telephone.
April 9 is Winston Churchill Day, marking his honorary citizenship of the United States.
We've delved into the BT Archives to find some BT trendsetters from yesteryear.
See the role of women in the telegraphy and telecoms industries – the origins of BT.