Gettysburg Concordance, proudly released in conjunction with the 150th anniversary of the Battle of Gettysburg, is a comprehensive and interactive digital reference to the most significant battle ever fought on American soil.

Follow every regiment, brigade, division, corps, and army across the campaign area and battlefields in the month leading up to the Battle of Gettysburg, the historic battle itself, and the subsequent retreat.

The Gettysburg Concordance follows the entire campaign from June 3 to July 14, 1863 and includes over 1,000 events, drawn from over 150 primary and secondary sources. The app covers the order of battle, including over 1,300 individuals who held command at Gettysburg. It is a visual database as well, showcasing over 700 images – photos and sketches of the officers and battlefield in 1863 and today. Each event is geo-referenced. You can use it as a guide on the battlefield, within the campaign area, or as an armchair general at home. Backed by rigorous scholarship, each entry includes at least one, and sometimes as many as four or five references.

Track Joshua L. Chamberlain, Robert E. Lee, John F. Reynolds and over 1,300 other individuals. Read the orders they gave and the letters they wrote. See images of them as well as the engagements in which they participated.

Data is displayed on scalable maps, which can be zoomed in or out with a simple pinch or swipe, and on easy to search tables. With a few taps you can search and restrict events to a range of dates, one or more units (over 800), an individual or any combination thereof.

Despite the large volume of data contained in the Gettysburg Concordance, it is fast, easy to use and provides an enjoyable experience for the amateur historian, re-enactor, educator, researcher or tourist. You can even walk the battlefield with a GPS enabled iPhone or iPad and watch your user position change as you intersect the location of important historical events.

The authors of the Gettysburg Concordance continually expand the content as new research comes to life. Users are encouraged to contribute photos and additional detail to be considered for inclusion in updates. To join the discussion, visit us on Facebook at: https://www.facebook.com/GettysburgConcordance

If you are interested in the American Civil War and the most significant battle ever fought on American soil . . . you need the Gettysburg Concordance.