I'm working on a project to create a historical reference for how my university handled the COVID-19 outbreak. The goal is to make use of the time slider tool to showcase locations of international students on six specific dates during the outbreak but to also show the status of countries around the world based on their CDC warning level. I have all the dates I need but I'm not sure how to go about showing the CDC warning levels while using the time slider to change which countries are highlighted.
I'm really just not familiar with polygon data types since and I create almost all of my layers from csv using excel and as far as I know there is no way to do this using csv. I'll also say that I'm really only able to use arcgis online for this which might make it tricky.
If there are any ideas out there please let me know cause I got nothing.