This line chart tracks Rhode Island’s monthly unemployment rate from 1976 onward, using data from FRED. It plots the rate over time with a steel-blue line, while red dots flag five notable spikes, including the 2020 peak. The visualization is built with D3.js and React, using `scaleTime` and `scaleLinear` for axes and a custom binary search for hover tracking. A tooltip showing exact values appears on mouseover, and grid lines and axis labels support reading the trend.