Bitcoin miners will go to remote locations to take advantage of cheap electricity.

In 2015 Goodluck Jonathan became the first Nigerian president to concede election defeat. It allowed the transfer of power to the opposition party in Africa's biggest democracy - a country that had hitherto experienced vote-rigging and violence.

His special adviser on media and publicity Dr Reuben Abati tells Josephine McDermott about the moment when the president phoned his opponent Muhammadu Bahari to congratulate him on winning the election.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more.

Recent episodes explore everything from football in Brazil, the history of the ‘Indian Titanic’ and the invention of air fryers, to Public Enemy’s Fight The Power, subway art and the political crisis in Georgia. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: visionary architect Antoni Gaudi and the design of the Sagrada Familia; Michael Jordan and his bespoke Nike trainers; Princess Diana at the Taj Mahal; and Görel Hanser, manager of legendary Swedish pop band Abba on the influence they’ve had on the music industry. You can learn all about fascinating and surprising stories, such as the time an Iraqi journalist hurled his shoes at the President of the United States in protest of America’s occupation of Iraq; the creation of the Hollywood commercial that changed advertising forever; and the ascent of the first Aboriginal MP.

(Photo: President Goodluck Jonathan and Gen Muhammadu Buhari before the 2015 election. Credit: Getty Images)

Thomas Partey nets twice as Ghana strengthen their bid for a place at the 2026 World Cup, while Ivory Coast return to the top of their qualifying group.

Priver Ngonyani has been blind since birth but he has coached Tanzanian football club Mfaranyaki City for a decade.

Decorated test pilot James O'Connell was in a "good frame of mind" prior to the crash, the BBC is told.

A Sudanese general said Chad's airports were legitimate targets because they were used to supply weapons.

Bournemouth forward Dango Ouattara says Islam helps him "stay on the right path", as he discusses football, faith and fasting during Ramadan.

Bournemouth forward Dango Ouattara says Islam helps him "stay on the right path", as he discusses football, faith and fasting.

A look behind the scenes of the Ethiopian cafe which has become a hub for the community in Reading.

A mother explains why she - and 77% of the country’s women - have used dangerous creams.

No group has claimed responsibility, but an official said the attack followed a pattern of raids by Islamist militant group al-Shabab.

Pierre-Emerick Aubameyang scores twice as Gabon beat Kenya 2-1 to severely dent the East Africans' hopes of reaching the 2026 World Cup.

Ebrahim Rasool arrives home to a jubilant crowd after being declared unwelcome in the United States.

Some locals find they cannot compete with those holidaying from the diaspora who are nicknamed I Just Got Back.

Sudan hold Senegal to a draw in qualifying for the 2026 World Cup and remain top of their group despite civil war continuing in the country.

BBC Verify examimes social media footage of the fight for control of the Sudanese capital, Khartoum

Victor Osimhen nets twice as Nigeria register their first victory in qualifying for the 2026 Fifa World Cup, while Algeria, Egypt and Ghana also win.

Sudan's army has retaken the presidential palace from the Rapid Support Forces (RSF), but what's next after two years of war?

It follows days of heavy fighting as the army took control of areas previously held by a rival force.

Caroline and Tinashe Gatimu discuss how taking on one of the World Rally Championship’s iconic events has revved up their relationship.