Compare the Russian Slides from 17th Century to roller coasters as we know them now. What's the same? What's different?

What do historians call the political,social,or cultural circumstances surrounding an event?

:) during the cold war, people were afraid of communists, both outside and inside the united states. the red scare and mccarthyism that grew out of these fears were damaging to the american way of life. during the mccarthy years, many of the freedoms guaranteed in the bill of rights were limited. write a paragraph explaining what lessons can be learned from the mccarthy era about what u.s. citizens need to protect in order to preserve the democratic political system and the american way of life.

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