I was hooked up with front end development at the time (simple things, the site is still plain HTML/CSS and jQuery) and I wanted to create a simple webpage as a final project. At the same time, I saw an election prediction map for my country, Greece, and tried to find a way to make one for myself, but could not find any tool for it. Thus, I spent some time creating the first map chart page for Greece and then extended it to the World, USA and Europe maps (and more; there are now almost 22 different maps).

The competition in this niche is either stale (old sites that don't have a modern interface and/or many options) or premium services (whole suites of applications that cover a range of options), so it is currently the #1 Google Search result for queries like 'create my own map', 'make a world map', 'custom USA map' etc.