They were able to unite because the Persian invasion of Greek mainland was a common threat for all, so they united to stop it. This was impossible before because Persia was not considered to be such a major threat.
D . Both countries experienced political instability and constant
Answer:
President Vladimir Putin of Russia proposed constitutional changes that could enable him to wield political power after his presidency ends, as his longtime ally, Prime Minister Dmitry Medvedev, unexpectedly resigned.
The changes laid out by Mr. Putin on Wednesday would limit the power of a potential successor after 2024, when he is required by law to step down. He also proposed boosting the role of the State Council, which he already heads.
As head of an empowered State Council, Mr. Putin could remain in control and guide policy after his presidential term expires.
“It’s not clear what role he will play, what will his status be. The only thing which is clear is that he will keep his role as the No. 1 person,” said Aleksei Chesnakov, a political analyst and former Kremlin aide.
Mr. Medvedev’s resignation represents the biggest shake-up in the Russian government in nearly a decade, as Mr. Putin has tried to project an image of stability despite a worsening economy and increasing layers of Western sanctions.
The Industrial Revolution had a huge impact on society. The major effects were socially and economically. It is rather difficult to date the start of the industrial revolution but history books of today suggest the onset during the 18th century.
The change from agriculture to industry was vast and it must be remembered that England was the first country to undergo this profound change. The initial effect on engineering industries arising at the start of the Industrial Revolution were due partly to the geographical location of the resources i.e. coal iron and water. The inventiveness of our ancestors in these as well as other industries such as textiles chemical electrical and transportation contributed greatly to the Industrial Revolution.
