Discover History Every Day
Every day of the year is marked by events that have shaped our world. From great battles to scientific discoveries, from famous historical figures to forgotten anecdotes, every date is an opportunity to learn something new.
Ce jour-là was born from a simple idea: make history accessible to everyone in just a few minutes a day. Every day, the app invites you to discover the events that occurred on this date, explore famous or forgotten stories, and enrich your historical knowledge over time.
More than a simple historical almanac, Ce jour-là is a collaborative application. Users can submit new events, vote for their favorites, take daily quizzes and share their discoveries with friends. A simple, collaborative and ad-free way to keep history alive every day.
Key Features
A New Page of History Every Day
Discover the events that shaped this date throughout history.
Every day reveals battles, discoveries, famous historical figures and forgotten stories. With a database of nearly 13,500 historical events, Ce jour-là offers a rich and varied timeline illustrated with historical content.
Browse any date of the calendar, travel through the centuries or simply let yourself be surprised by a random historical event to expand your knowledge every day.
Learn in Different Ways
Read, listen or challenge yourself: multiple ways to explore history.
Test your knowledge with a quiz mode available at any time. Questions are generated from nearly 13,500 historical events and follow a progressive difficulty. Each game lasts about three minutes and your best scores can be compared with players worldwide through Google Play Games leaderboards.
For a more immersive experience, a daily two-minute podcast highlights the major events of the day. An easy way to discover history even when you only have a few minutes available.
A Community That Builds History Together
An active community helps the application grow every day.
Since its launch, Ce jour-là has been downloaded more than 500,000 times and now brings together nearly 25,000 monthly active users. This community contributes to discovering history from a fresh perspective.
Users can submit new historical events, vote for their favorites, share discoveries and contribute to the ranking of the most popular events. A collaborative approach that allows the application to continue evolving over the years.
Design & Development
Beyond the features, discover the technical choices, architecture and technologies that have shaped Ce jour-là since 2016.
Architecture & Technologies
A client-server architecture designed to evolve over time.
Ce jour-là relies on a client-server architecture. The Android application, developed in Kotlin with Jetpack Compose, communicates through a REST API with a Python/Flask backend responsible for centralizing historical data, audio content, community contributions and online services. This separation between client and server makes the application easier to maintain and evolve while ensuring excellent performance.
The Project in Numbers
Nearly ten years of continuous development and improvements.
For almost a decade, Ce jour-là has continuously evolved with new features, optimizations and the daily enrichment of its historical database. These key figures illustrate the scale of the project and the work accomplished since its beginning.
| Development | Since 2016 |
| Published Versions | 74 |
| Downloads | 500,000+ |
| Monthly Active Users | 25,000+ |
| Historical Events | 13,500+ |
| Audio Podcasts | 366 |
| Recorded Votes | 1.4 million |
| Android Code | ≈9,000 lines |
| Backend Code | ≈8,500 lines |
Support Development
All applications and games presented on this website are developed during my spare time.
If you enjoy my work and would like to support the development of new features, historical content and future projects, you can support these projects on Ko-fi. Every contribution helps me continue creating independent applications and games.