Programming language: p5.js
Coded by me
Data: Population of cities in Syria, gathered from various resources around web.
It is a simple, mouse rollover interaction. Names are ordered from largest to smallest city populations. 2004 is the last official Cencus data record from Syria. I did a lot of research, visiting several websites to pull reliable, updated data. However, rest of the data is not from a single, reliable resource like 2004 Cencus. You can observe the population drop after 2012 and 2013. Syrian Conflict has started on 2011 and population started to decrease drastically. However, there is no single, reliable resource that might be helpful to verify the population data in an ongoing war environment.
Also, programming is open source, so I can publish this p5.js sketch on a website, but Tableau requires a public profile to publish the data, then access to API to publish the data interactively. That's why I didn't get a chance to share the interactive sketch from Tableau.