This is a Warm Up/Review Lesson using images found on a first day cover-envelopes with commemorative stamp, postmark and artwork. Start the conversation by defining civil disobedience. What law would students be willing to disobey and suffer the penalty? Show the first day cover and allow students to discover who is being honored. "Open the Envelope" and read an excerpt from Thoreau's 1854 speech. What law was Thoreau willing to break and then go to jail? Allow students to use their critical thinking skills to tie this event to past actions that might be considered acts of civil disobedience. What legal action could be taken by citizens to protest slavery? This lesson could be part of a larger abolitionist unit or lessons on reformers.