Since the early on years of the U.S. in that place has been a gradual westward shift inward the hateful centre of population. In 1790 the almost populated cities inward the U.S. were all on the East Coast. In the 2010 census seven of the x largest cities were located inward the Dominicus Belt share of the due south as well as west.
Influenza A virus subtype H5N1 few weeks agone I saw a actually interesting animated GIF, posted to Reddit, which mapped the superlative x cities past times population past times decade inward the United States. You tin ship away persuasion the map, past times Reddit user Eudaimonics, here. Being an animated GIF agency that you lot can't interact amongst the map. I actually wanted to play amongst the map thus I decided to exercise my ain interactive map of the same data.
Shifting Cites shows the superlative x almost populated U.S. cities for every decade since 1790. The map too shows the hateful centre of population inward the USA for each decade. The information for the map comes from each U.S.census equally listed on these 2 Wikipedia articles; Largest cities inward the U.S. past times population past times decade & Mean centre of the U.S. population.
To exercise the map I made extensive purpose of the Leaflet mapping library's Layer Groups feature to grouping cities past times decade. The map thus only uses an HTML5 make slider command to charge the markers onto the map past times the relevant decade.
When you lot guide a decade from the slider command the blueish markers demonstrate the place of the superlative x almost populated cities as well as the crimson marking shows the hateful centre of the population. The left paw side panel too updates to demonstrate a numbered listing of the superlative x cities for the selected decade. The modest window inward the superlative right-hand corner of the map too updates to furnish to a greater extent than full general information on the patterns of population induce existence shown on the map.
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