The Congressional Record is the official record of the proceedings and debates of the United States Congress. It is published daily when Congress is in session. The Congressional Record began publication in 1873 and is still published today. At the end of each session of Congress, all of the daily editions are collected, re-paginated, and re-indexed into a permanent, bound edition. This permanent edition, referred to as the Congressional Record (Bound Edition), is made up of one volume per session of Congress, with each volume published in multiple parts, each part containing approximately 10 to 20 days of Congressional proceedings. The primary ways in which the bound edition differs from the daily edition are continuous pagination; somewhat edited, revised, and rearranged text; and the dropping of the prefixes H, S, and E before page numbers.