A bar chart displays the number of houses sold in the North East region of the United States per year from 2011 to 2022. It uses D3 v7 with an SVG rendering approach, employing `scaleLinear` for the x-axis and `scaleBand` for the y-axis. The code loads CSV data from a remote GitHub gist and includes a custom tooltip on hover. The bars are colored with a CSS-defined fill, which darkens on mouseover. The chart is titled "Houses sold (in Thousands) in each year."