How elections spread, voting rights expanded, and political competition developed around the world over the last two centuries.<br><br><a href="https://ourworldindata.org/the-rise-of-electoral-democracy"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/8bb8ce32-4bbc-487c-e8bf-4ca148339a00/w=1024"/></a>

Falling fertility rates have created a unique scenario in human history: many countries are experiencing structural population decline.<br><br><a href="https://ourworldindata.org/which-countries-have-already-passed-peak-population-and-when-will-the-rest-do-so"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/0da09f22-48af-466e-88fa-22780080b500/w=1024"/></a>

What share of the world is religious, and how is this changing? Explore global data and research on trends in religiosity.<br><br><a href="https://ourworldindata.org/religion"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/d55e9c17-481a-4aab-81f7-3ee627dce800/w=1024"/></a>