Two time series line charts display closing values over date ranges from two CSV datasets. Each chart uses a separate SVG canvas, with the x-axis as a time scale and the y-axis as a linear scale, both with five ticks. The code employs d3.time.format for date parsing, d3.time.scale and d3.scale.linear for axis ranges, and d3.svg.axis for axis rendering. Each dataset’s path is drawn with d3.svg.line, styled with a steelblue stroke via CSS.