A major trend in American political life, in the late 20th century, was towards fiscal conservatism. The free spending ways of the 1960s and 70s gave way to a more conservative approach.
a major role
He is a political commentator who revitalized the Republican Party in the 60s and 70s. He is commonly known as "the godfather of neoconservatism."
Matt Bird was very important. He helped during the Cold War and with thedevelopmentof the atomic bomb
the '50s, '60s, and '70s.
Not in the way it was in the 70s, 80s and 90s. There are problems, but these are more in the political arena than in trouble on the streets.
The 70s.
In the early 60s and 70s the Vietnam played an important role in the American history. They were involved in a number of fights that eventually helped the US become a world force to reckon.
Moving on by Ramond Hannisian.
70s man
I think you mean 70s song BY Nazareth. The most famous would probably be their version of "Love Hurts." This was their one major US hit. They were a Scottish band, however, and had more than a few other top releases in the UK.
You can refer to a person in their 70s as a septuagenarian.