During which era did détente mainly occur?

1960s
1970s
1980s
1990s

Historians are concerned with the accuracy of their writings and readings but are also aware of the inability of authors to know every angle of every story biases, perspectives, beliefs, and a variety of other differences history being told by one person at a time no one being totally accurate, as hard as we try really need on this, and you^^

Why did william blackstone believe that parliament was important?

What are three supporting points as to why opium was wrong in the chinese trade? why should it have stopped? (opium wars)