The Commissioners published their plan in March 1811 in the form of an mapredrawn by the otherwise little known William Bridges from Randel's original, and engraved by Peter Maverickwith an accompanying 54-page pamphlet. The grid had 12 primary north–south avenues and numerous cross streets arranged in a regular right-angled grid tilted 29 degrees east of true north to roughly replicate the angle of Manhattan island. The Commission chose not to use circles and ovals such as Pierre L'Enfant had used in his design of Washington D.C., convinced that simple rectangles were best, the most convenient and easiest to build on, and therefore the most conducive to the orderly development of the city. The combination of north–south avenues and east–west streets at the specified dimensions was the creation of approximately 2000 long, narrow blocks.