Eli5: Why is the English language most common in this world?

Question

Eli5: Why is the English language most common in this world?

In: 41

Answer 1

English is super easy to learn. No noun cases, no verb conjugations, no adjective/noun agreement to name a few easy bits. 2 people from different parts of the world would be able to understand each other with just a few weeks of learning. It’s convenient.
And it’s taught as a second language in most parts of the world.
Of course more in depth studies would be required if someone wanted to be fluent and and be able to discuss more complicated topics