What does the word promotion mean within the context of the article

Promotion could have multiple meanings.

For example, if you say "Mr. Knight got promoted (or got a promotion) from supervisor to manager". There promotion means "raise".

If a product is at promotion there promotion means advertising efforts.

It could also refer to a way to support a cause. For example: There's a campaing supporting healthy lifestyle promotion.

john smith was the first englishman to sail around the world. francis bacon served as attorney general and lord chancellor of england. he took up aristotelian ideas, arguing for an empirical, inductive approach, known as the scientific method, which is the foundation of modern scientific inquiry.