The NYPL Map Warper is a tool for digitally aligning ("rectifying") historical maps from the NYPL's collections to match today's precise maps. Visitors can browse already rectified maps or assist the NYPL by aligning a map. Play the video above to tour the site and learn how to rectify a map yourself.
Everyone is welcome to participate!
From District 5 (In 3 layers) Depicts: 1969
|1969||2 days ago.||12 control points.|
Brooklyn, Vol. 1, 2nd Part, Double Page Plate No. 40; Part of Ward 28, Section 11; Map bounded by Cornelia St., Wyckoff Ave., Eldert St., Irving Ave.; Including Cemetery Lane, Granite St., Evergreen Ave., Moffatt St., Broadway / by and under the dir...
From Volume 1, part 2 (In 2 layers) Depicts: 1916
|1916||2 days ago.||4 control points.|
Brooklyn, Vol. 3, Double Page Plate No. 31; Part of Ward 28, Section 11; Map bounded by Eldert St., Knickerbocker Ave.; Including Granite St., Broadway
from Wards 13, 14, 15, 16, 17, 18, 19, 27 & 28. (In 2 layers) Depicts: 1904
|1904||2 days ago.||7 control points.|