Course 19 - History

Any change, discovery or invention that makes the world better

An event that changes a situation, or the process of growing or changing

A machine, tool, system, etc., made for the first time

When something increases and affects more people

A complete change either in the way people think or in a country's political system

Change that improves something

Something that someone learns about when it was not known before

A group of people that works to achieve an aim

The basic idea or principle behind something

The time when an important change begins to happen (two words)