After the centre-left lost power in 2001, Mr Bersani embarked on a nation-wide tour of Italian industrial sites, writing a book and then a series of policy proposals as he returned to government as minister of economic development in 2006.
Matteo Renzi's centre left government loses power and is replaced by the Five Star Movement, which has pledged to hold a referendum on leaving the euro.
More than 400,000 houses lost power, leaving a huge swath of southern Louisiana without working traffic lights.
18 wells lost power, leaving 110,000 without water service in the municipalities of Santa Catarina and García.
Among more recent premiers Jim Callaghan and Margaret Thatcher were well into their 60s by the time they lost power and left the Commons.
The Catalan regional elections on November 28 brought further bad news for the Socialists as the tripartite PSOE Republican Left of Catalonia Green regional government lost power to the conservative Catalan nationalists of Convergence and Union (CiU).
One of the men rescued, Sam Smith, described how the helicopter suddenly lost power and leaving those on board "no time to brace", it has been reported.
The next day, the city's already-strained metro system lost power for hours, leaving commuters stranded.
In the Buffalo area, nearly 20,000 customers were left without power, while about 11,000 Long Island customers lost power.
About 200,000 people in northeastern Mexico lost power, and 100,000 people were left without water.
