Trusted By Millions · New Content Daily · Ratings & Reviews · Award-WinningTypes: Units, Activities, Worksheets, Printables, Video, Curriculums. Let's do English ESL reading for detail (deep reading). This worksheets has a text about the history of Valentine's day. The students read the text and answer t. The history of Valentine's Day is full of theories about how the holiday began. Read about the history of Valentine's Day with this exercise and activity. 5th grade. Reading & Writing.