I used the google trends API. An API that allows you to explore the most popular google searches and trending buzzwords in different countries. The API has been collecting data since 2004 giving you the option to choose specific timepoints if you are interested in certain time periods. Also, when typing a searchword another feature to the API returns a global comparison showing the countries in which your searchword was more popular.
The google trends library is available through Node.js. For this project I set up a server using Digitalocean and created a cloud server (droplet) from which I could serve my content. I used Fetch for file transfer and updates to the server.