This document describes a project called TwHistory that uses Twitter to collaboratively recreate historical events through roleplaying as historical figures. Students research figures and write tweets in character that are scheduled to go out over time to simulate the unfolding of events. Recent projects included recreations of the leadup to Gettysburg and the Cuban Missile Crisis. The goals are for followers to experience history unfolding in real time and for student participants to gain experience evaluating sources and representing historical perspectives through social media. The document outlines the process and shares lessons learned from past projects, and seeks funding to further develop the approach into an online platform and curriculum.