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!
Map of n. eastern Virginia and vicinity of Washington / Compiled in Topographical Engineers Office at Division Head Quarters of General Irvin McDowell, Arlington, January 1th sic 1862, corrected from recent surveys and reconnaissances under directio...
From Virginia (In 5 layers) Depicts: 1862
|1862||1 day ago.||5 control points.|
from A new systeme of the mathematicks: containing I. Arithmetick, as well natural and decimal, as in species, or the principles of algebra. II. Practical geometry, together with the first six books of Euclid's Elements, as also the eleventh and twelfth, symbo (In 2 layers) Depicts: 1681
|1681||1 day ago.||12 control points.|
Plate 139: Bounded by Lawrence Street, W. 127th Street, Eighth Avenue, W. 122nd Street, Morningside Avenue, W. 123rd Street and Amsterdam Avenue.
from Atlas of the borough of Manhattan, city of New York. (In 1 layer) Depicts: 1916
|1916||3 days ago.||9 control points.|