A line chart displays population growth from 1950 to 2020 using an inline dataset with seven decennial data points. The visualization uses D3.js v7 to construct an SVG, with `d3.line` generating the path, `d3.scaleLinear` mapping years and population values, and `d3.axisBottom` and `d3.axisLeft` rendering the axes. The chart also includes axis labels and a steelblue line, presented within a styled container.