For those of you that regularly examine changes over space and time with imagery and GIS: 81 different dates of historical imagery for the past 5 years now reside in ArcGIS via the World Imagery Wayback service. For more, see: https://www.esri.com/arcgis-blog/products/arcgis-living-atlas/imagery/wayback-81-flavors-of-world-imagery/ You can access this imagery in ArcGIS Online, ArcMap, and ArcGIS Pro. A great place to start is the World Imagery Wayback app – just by using a web browser – https://livingatlas.arcgis.com/wayback/ Great global resource for examining land use and land cover change, changes in water levels of reservoirs, coastal erosion, deforestation, regrowth, urbanization, and much more.