Germany as a country was not thought off until the time of Julius Caesar. It was the only part of Europe that the Roman Emperor had been unable to conquer. Caesar called it Germania. He lost the Battle of the Teutoburg forest in AD 9 and therefore Germania was never part of the Roman Empire.
After the fall of the Roman Empire, Germany came under the rule of the Franks. Eventually, in 962 AD, Otto I became the King of the country which marked the beginning of the Holy Roman Empire.
In 1648, after the end of the Thirty Years War, the Holy Roman Empire ended and Germany was split into different countries like Prussia, Bavaria and Saxony due to the separation of the Christians into Protestants and Catholic groups due to the successful Protestant Reformation led Martin Luther.
After the French revolution and the Napoleonic wars, feudalism fell away in Germany but it was not until 1871 that Germany achieved unification under the leadership of Prussian Chancellor Otto von Bismarck.
The 19th century saw the country take a bad turn. After initiating and losing two World Wars, Germany was stripped off its colonies and forced to pay war expenditures. By the end of the Second World War, the country had been split into two parts: the democratic West Germany and the communist East Germany.
Millions of ethnic refugees fled East Germany and entered West Germany. By 1950 West Germany was an economic power and was re-armed but without access to nuclear weapons.
In 1989, the Eastern bloc collapsed and East Germany was reunited with West Germany in 1990.
Most recently the German Chancellor Angela Merkel has said that Germany was going to shut down its nuclear power sources over the next decade and only rely on wind and solar power along with coal and natural gas as an energy source.