A nautical chart of the approaches to New York Harbor, drawn in the style of a modern electronic navigational chart. It covers the seaward gateway to the port — the Lower Bay, the Narrows between Staten Island and Brooklyn, and the Anchorage Channel that carries traffic up toward the Hudson and East Rivers. Soundings and depth contours are given in metres, and the familiar bands of blue step from the shoals and flats out to the deeper water of the dredged channels.

It is rendered from NOAA’s public-domain Electronic Navigational Chart for the harbor — cell US4NY1AQ — compiled from hydrographic surveys spanning 1930 to 2022. The shoreside road and rail detail is drawn from OpenStreetMap. The symbology follows the international S-52 convention used on shipboard chart displays, and the margins carry the usual furniture of a paper chart: a compass rose, tidal-level and tidal-stream tables, and the datum note (WGS 84). It is a faithful reproduction of the cartographic form, not a working document — it is not maintained to Notices to Mariners, and it is not for navigation.

A three-panel thematic map of New York City, reading left to right across roughly a century. It follows two immigrant populations — Italian and Eastern European Jewish — from the tracts where they first concentrated, through their dispersal across the boroughs, to the city’s present-day scatter of pizzerias and bagel shops. All three panels share one projection and one colour register, so they read as a single continuous picture.

The left panel maps the 1910 foreign-born share of population by census tract, with each group’s strongholds picked out against the early city. The centre panel covers 1920 to 1950: flow arrows, their width proportional to the number of residents moving, carry each population out of its original core and into the wider boroughs. The right panel is 2026 — pizza and bagel establishments plotted as points over the modern street and park network.

The historical tracts are aggregated from the 1910, 1920, and 1950 US Censuses via IPUMS NHGIS; the modern boundaries and parks are from NYC Open Data, and the eating places from the city Health Department’s inspection records. It is drawn in the Wong colour-blind-safe palette and projected on the New York State Plane (Long Island) grid.