American Revolution

Stamp Act

Mar 22, 1765

The Stamp act affected all American colonists, requiring them to pay a tax on every piece of printed paper they used. The British did this because the British Empire was in deep debt from the Seven Years' War. The British had found a revenue source. The passing of the Stamp Act took place by the British Parliament and was regulated in all American Colonies. Symetrica
This is asymmetrical because the colonists protests the tax.
Source

Boston Massacre

Mar 5, 1770

The Boston Massacre had included British Soldiers and Boston. The place it occurred was in the City of Boston when citizens heckling & snowballs thrown, threats caused civilians to die. Source

Boston Tea Party

Dec 16, 1773

The Sons of Liberty led by Samuel Adams boarded three ships and tossed 342 chests of tea overboard in protest to the Tea Act, which taxed tea. Source

Lexington and Concord

Apr 19, 1775

After tensions rose against the Colonists and the British, the American Revolution finally kicked off with the Battle of Lexington and Concord. The Battles started when the British marched in hundreds into the towns of Lexington and Concord hoping to seize the Colonies arms cache. This was asymmetrical because the British thought it would be an easy victory but they got surprised by the Continental Army going into each of the two towns.
Source

Bunker (Breed’s) Hill

Jun 17, 1775

The colonists prepared for a fight from the British on June 17th,
1775. Both sides lost a significant amount of soldiers including the un-experienced colonists killing a large majority of the British. That had boosted their confidence. Source

Common Sense

1776

Thomas Paine wrote the pamphlet "Common Sense" in 1775 and it was published in January of 1776. The main impact of this pamphlet was to help cause the American colonists to decide to fight for independence.
Source

The Declaration of Independence

Apr 7, 1776

The main purpose of America's Declaration of Independence was to explain to foreign nations why the colonies had chosen to separate themselves from Great Britain. The Revolutionary War had already begun, and several major battles had already taken place. On June 7th, 1776, Richard Henry Lee voiced a resolution that the ties with Great Britain should be dissolved.
Source

Battle of Trenton and Princeton

Period: Dec 26, 1776 to Mar 3, 1777

After George Washington's Army crossed the Delaware river, the next two battles were of high importance to the Continental Army. After the two wins American gained much control of New Jersey, and also improved morale among the colonial army and militia.

Source
Picture

Continental Army wintering at Valley Forge

1777

Valley Forge was northwest of Philadelphia where the American Continental Army spent the winter of 1777–78 during the American Revolutionary War. Starvation, disease, malnutrition, and exposure killed more than 2,500 American soldiers by the end of February 1778, lead by General Washington.
Source

Battle of Saratoga

Period: Oct 19, 1777 to Nov 17, 1777

An American war for independence was fought against British forces, and had marked the first time in history where the British had surrendered. This win had strengthened foreign recognition and support.
Asymmetrical, the Colonists were fighting for Independence.
Source
Picture

War in the south/Charleston

Apr 2, 1780

The British forces, manned by Sir Henry Clinton, marched overland to Charleston and fought against the Americans until May 12, 1780, when Benjamin Lincoln surrendered Charleston and soldiers. This was a huge lost to the Continental Army, being asymmetrical.
Source

Battle of Yorktown

Period: Sep 28, 1781 to Oct 19, 1781

Fall of 1781, a combined American force of Colonial and French soldiers fought the British Army at Yorktown. Led by George Washington and a French General, they began their final attack on October 14th, capturing two British defenses and leading to the surrender. Yorktown proved to be the final battle of the American Revolution, negotiations began after the victory.
Source
Picture