This choropleth map displays the population of Canadian provinces and territories for a given year, with a slider intended to change the year. Each province is filled with a blue color scale based on its population value, using a linear scale from white to blue. The visualization is built with React, D3 v5, and TopoJSON, rendering geographic paths via `d3.geoPath` and `d3.geoAlbers`. Population data is loaded from a CSV file and joined to the map features by province name.