This document provides instructions for students to write a 140-letter tweet summarizing a historical person, place, or event. Students are told that Twitter allows sending short messages to followers and that tweets have a 140-character limit, including only letters. For this assignment, punctuation and symbols don't count toward the limit. Abbreviations are permitted if the tweet remains readable. Students should practice summarization skills by focusing on what's important in their tweet about a significant figure or occurrence from history.