BT Tower Goes Live as a Cold War Microwave Relay Hub · Chronopin

ArchitecturePosted 09/14/202609/14/2026 at 8:37 pm@BuildDesk To timeline

Starts 10/08/1965 CONFIRMED 83% CONFIDENCEHappened as dated, per the source^[1]: "a single telephone call changed the history of London and the United Kingdom forever."

Start: Oct 8, 196590% CONFIDENCEfrom the source

BT Tower Goes Live as a Cold War Microwave Relay Hub

London's cylindrical BT Tower (originally the GPO Tower) began carrying live microwave telecommunications traffic in 1965, its concrete core partly designed to survive a nuclear blast.

London's BT Tower (built by the General Post Office as the Post Office Tower) was officially opened on 8 October 1965 by Prime Minister Harold Wilson, who made a call to the Lord Mayor of Birmingham^[2][3]
It was built for microwave aerials, with capacity for 150,000 simultaneous telephone connections and 40 TV channels; the first microwave link (to Norwich) came on 1 January 1965^[2][3]
The tower is 177 m (189 m with aerials), cost about 2.5 million pounds by one account, and was the tallest structure in London until 1980; construction ran from June 1961^[2][3]
The public opened on 19 May 1966 with a Butlins revolving restaurant on the 34th floor; a bomb on 31 October 1971 (Angry Brigade) led to closure to visitors^[2][3]
Antennae were removed by December 2011, and BT sold the tower to MCR Hotels in 2024^[3]

References 383% CONFIDENCE

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

[1]90%
youtube.com/watch?v=I_IruM3zdzs
youtube.com· Posted Sep 14, 2026· Starts Oct 8, 1965 ✓· 33% of score
Happened as dated, per the source: "a single telephone call changed the history of London and the United Kingdom forever."
[2]76%
8 October 1965: The Post Office Tower opens - MoneyWeek
moneyweek.com· Added Sep 14, 2026· 33% of score
MoneyWeek confirms "The Post Office (now BT) Tower was officially opened on 8 October 1965 by the prime minister, Harold Wilson, who made a telephone call to the Lord Mayor of Birmingham," an exact match to the pin's stored date.
[3]82%
BT Tower - Wikipedia
en.wikipedia.org· Added Sep 14, 2026· 33% of score
Wikipedia's history of BT Tower notes "The first microwave link was to Norwich on 1 January 1965," several months before the pin's stored 8 October 1965 date - a related but earlier operational milestone, with the tower's public opening tied instead to Harold Wilson's telephone call that October per MoneyWeek's^[2] account.

Suggest a correction

Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.

Architecture09/15/2026@BuildDesk
MI6's Vauxhall Cross Headquarters Officially Opens
85 Albert Embankment, Vauxhall, London, UKSecret Intelligence Service
Starts 07/14/1994CONFIRMED 87% CONFIDENCE32.2 years agoHappened as dated, per the source^[1]: "officially opened by Queen Elizabeth II accompanied by Prince Philip, Duke of Edinburgh, on 14 July 1994".
Britain's Secret Intelligence Service (MI6) moved into its purpose-built Vauxhall Cross headquarters, ending decades of hiding in increasingly compromised office buildings.
0.64
Architecture09/15/2026@BuildDesk
Inside Big Ben's Makeover
Palace of Westminster, Westminster, London, United Kingdom
Starts 11/13/2022CONFIRMED 90% CONFIDENCE3.9 years agoHappened as dated, per the source^[1]: "the chimes of Big Ben returned to regular service for the first time since August 2017" on Remembrance Sunday, 13 November 2022.
After a five-year, £80M restoration, the bells of Big Ben return to regular service in London’s Elizabeth Tower for the first time since 2017.
£80M
0.63
Energy09/23/2026@EnergyDesk
Base Electron's 1.2 GW Gas Plant for Applied Digital Goes Online
Babcock & Wilcox…Center, Oliver County, North Dakota, United States
Starts 12/31/2030DELAYED2 years late76% CONFIDENCEin 4.3 yearsA target year, per bismarcktribune.com^[1]: Base Electron's Tyler Hammond said that if the permit is approved "construction would commence in the second quarter of 2027 and the plant would be operational in 2030"; a year alone is dated to its last day.
The 1,200 MW gas-fired plant Babcock & Wilcox is building for Base Electron near Center, North Dakota, to power Applied Digital's AI data centres is now due to run in 2030, after B&W first promised power by the end of 2028.
0.63
Transport09/15/2026@BuildDesk
New Wharf Completed at Rothera Research Station, Antarctica
Rothera Research Station, Adelaide Island, AntarcticaRoyal BAM Group
Starts 04/16/2020CONFIRMED 90% CONFIDENCE6.4 years agoHappened as dated, per the source^[1]: "For the first time, polar ships have moored at a new £40 million wharf".
BAM completed a new £40 million, 74-metre steel wharf at the British Antarctic Survey's Rothera Research Station so the new polar vessel RRS Sir David Attenborough could dock and resupply the base.
£40M
0.63
Semiconductors09/23/2026@TechDesk
TSMC Starts Volume Production of 2nm (N2) Chips in Kaohsiung
TSMC…TSMC Fab22 P1, 園區北路, Nanzi District, Kaohsiung 811, Taiwan
Starts 12/31/2025ESTIMATED 73% CONFIDENCE267 days agoTSMC's^[1][2] 2nm page says N2 "has started volume production in 4Q25 as planned" and its 2025 annual report that it "entered high volume manufacturing in 4Q'25"; neither names the day, so the quarter's last day stands in.
TSMC's first nanosheet-transistor node, N2, entered volume production in the fourth quarter of 2025 as planned, starting at Fab 22 in Kaohsiung, with Fab 20 in Hsinchu as its second 2nm fab.
0.62
Semiconductors06/15/2017@ThePinGang
Tri-band Wi-Fi chips for multi-gigabit streaming coming from Qualcomm
Qualcomm…
03/02/2015 - 03/15/2015 CONFIRMED 76% CONFIDENCE11.6 years agoHappened as dated, per arstechnica.com^[1]: "…Gig.” The Snapdragon 810 is expected to ship in the first half of 2015. Qualcomm did not disclose fi…"
Qualcomm announced that it completed the purchase of Wilocity and will soon deliver "a family of tri-band platforms that combine Qualcomm Atheros, Inc.ís Wi-Fi and WiGig solutions to significantly increase performance and enable cutting-edge wireless applications. The initial tri-band platform is a reference design based on the Qualcomm Snapdragon 810, which is the worldís first mobile platform designed to support WiGig." The Snapdragon 810 is expected to ship in the first half of 2015.
0.62
Energy06/21/2017@ThePinGang
UK's Newest Fusion Reactor Just Generated Its First Plasma
Tokamak Energy
04/28/2017 - 01/01/2018 UNVERIFIED 61% CONFIDENCE9.4 years ago
The United Kingdom switched on its newest fusion reactor last week, and the ST40 has already hit a milestone -- plasma within its core. The reactor, created by Tokamak Energy, should heat plasma to 100 million degrees Celsius (or 180 million degrees Fahrenheit)
0.61
Software09/15/2026@BuildDesk
51World Unveils a Full-City Digital Twin of Shanghai
Shanghai, China51World
Starts 12/18/2019CONFIRMED 79% CONFIDENCE6.8 years agoHappened as dated, per the source^[1]: "51WORLD ... unveiled its latest all-element virtual scenarios in the annual event of Earth Clone 3 (EC3) on December 18."
Beijing-based 51World launched a real-time virtual replica of Shanghai spanning nearly 4,000 square kilometres, built from satellite, drone, and sensor data.
0.61
Energy09/23/2026@EnergyDesk
Babcock & Wilcox Signs 1 GW Data Center Power Deal With Applied Digital
Babcock & Wilcox…Center, Oliver County, North Dakota, United States
Starts 11/04/2025 10:28PMCONFIRMED 89% CONFIDENCE324 days agoStated as done, per babcock.com^[1][6]: "(AKRON, Ohio - November 4, 2025) - Babcock & Wilcox ... announced today that it has ... [signed] an agreement for a limited notice to proceed"; the Business Wire copy on Yahoo Finance is timestamped 22:28 UTC and the SEC^[2][3][5] 8-K was accepted at 17:31 ET.
Babcock & Wilcox signed a limited notice to proceed on a project valued at over $1.5 billion to design and install four 300 MW gas-fired boiler and steam turbine plants for an Applied Digital AI Factory, its entry into AI data-centre power.
$1.5B
0.61
Energy09/22/2026@EnergyDesk
Rosatom Delivers ITER's Last Poloidal Field Coil to the Cadarache Site
RosatomITER site, Saint-Paul-lès-Durance, France
Starts 02/10/2023CONFIRMED 90% CONFIDENCE3.6 years agoWorld Nuclear News^[3] reported the Russian-built ITER^[2] poloidal field coil arrived at the port of Fos-sur-Mer on 10 February 2023.
A Russian-built poloidal field coil for the ITER fusion reactor reached the construction site at Cadarache, completing the set of six ring magnets that will shape and suspend the plasma. PF1 had landed at Marseille's industrial harbour, near Fos-sur-Mer, on 9 January and made the 105 km road journey a month later.
0.60
Architecture09/15/2026@BuildDesk
Transforming London’s Broadgate: 100 Liverpool Street
100 Liverpool Street, Broadgate, London, United KingdomBritish Land
Starts 09/01/2020CONFIRMED 84% CONFIDENCE6.1 years agoMultiple independent sources (Hopkins^[2] Architects’ own project page and New London Architecture) give the completion as September 2020, after this 2019 video was filmed mid-construction. Happened as dated, per the source^[1]: "an outstanding new benchmark for low-carbon commercial office redevelopment".
British Land completed a stripped-back rebuild of an aging 1980s Broadgate office block into 100 Liverpool Street, a low-carbon commercial tower beside Liverpool Street station.
0.60
Telecom02/27/2018@ThePinGang
Wide scale deployment of 5G
Intel
Starts 06/15/2020 CONFIRMED 75% CONFIDENCE6.3 years agoHappened as dated, per hexus.net^[1]: "…llular modem product news, the XMM 7660 was announced. This is an LTE modem that delivers Cat-19 cap…"
5G promises greater speed, higher capacity, and low latency to our essential high-tech smart connected devices. Intel wants to make the transition to 5G smooth and seamless and with this in mind has designed a powerful end-to-end 5G solution. The Intel XMM 8000 series is Intel's first family of commercial 5G multi-mode modems, operating in both sub-6GHz and millimetre wave global spectrum bands. Intel hopes to gather a mass of design wins for the XMM 8000 in PC, phones, and even vehicles.
0.60