Part of group presentation

hello 

we have a group presentation, and my part is about period  "UK being part of EU", I want some to write 450 words script.

factor 1: impact from abroad 

factor 2: economic/ political 

factor 3: social 

I want you write about period from 1957 until 2017. Don't write about the Brexit at all, it's someone else part. and don't write before 1957 as well.