When the first set of football rules was agreed on in an English pub in 1863 it was a very different sport to the one played around the world today.
It was entirely amateur and there were still no referees - players wore whatever clothes they could get their hands on.
But as the decades rolled on football became an established sport, not only in Britain but in many other countries, more formal club uniforms were created.
They usually took the colours of the schools or organisations with which they were associated.
The Arc de Triomphe in Paris is one of the world's most recognisable landmarks. But... what actually is it?
Here's one clue: it has a statue of Napoleon as a Roman emperor being crowned by the goddess of victory.
And it was Napoleon who had the Arc de Triomphe built...
The Arc de Triomphe de l'Étoile is its full name - the Triumphal Arch of the Star.
That comes from its location, formerly called the Place de l'Étoile and now the Place Charles de Gaulle, at the junction and heart of twelve different avenues.
It was commissioned in 1806 by Napoleon Bonaparte, Emperor of the French, after his famous victory at the Battle of Austerlitz.
This was a large-scale project and it wasn't completed, amid several interruptions, until 1836.
Baroque architecture is famous for its detail, grandeur, and extravagance.
But why does it look like that?
Well, back in the 17th century, it was supposed to stop you from reading too many books...
In the early 16th century the Catholic Church was under attack.
A German priest called Martin Luther had published his 95 Theses - a systematic criticism of everything he believed was wrong with the Catholic Church.
That was in 1517, and it started a revolution.
And he wasn't alone. There was also the Frenchman John Calvin, fellow German Andreas Karlstadt, and the Swiss Ulrich Zwingli.
What united them was a belief that the Catholic Church had strayed too far from what the Bible actually said and what the teachings of Jesus really were.