Historians use primary sources like diaries, letters, speeches. And secondary sources like articles.
French and Indian War : The French and Indian War was fought between England and France. Reason being, they wanted control of certain lands in North America.
Stamp Act: The Stamp Act was a tax put on American colonies by the British in 1765. Taxes were put on printed materials, newspapers, magazines and legal documents. It’s basically called the Stamp Act because colonies were supposed to buy paper from Britain that had an official stamp on it that showed they had paid the tax.
Townshend Acts: Charles Townshend came up with the Townshend Acts. The Townshend Acts were laws that placed a duty/tax on certain goods imported from Great Britain. These goods included glass, tea, paint, etc.
Boston Massacre: This is marked as the first conflict between the British soldiers and colonists. Many unfair taxes were being placed against the colonists and followed by the British soldiers. There was an exchange of unpleasant words between the soldiers and colonists which left colonists being killed by the soldiers.
The answer is Humid Continetial
