This area chart shows the evolution of urban population in Romania from 1960 to 2019, based on World Bank data. The visualization uses D3 v6 to render an SVG, employing `scaleTime` and `scaleLinear` for the axes, an `area` generator to create the filled region, and `axisLeft`/`axisBottom` with gridlines. The chart features a clear title, labeled axes with formatted tick values, and an orange semi-transparent fill to highlight the population trend over time.