linguistic:paraphrasing
Revolution and the siege of Boston

The weather continuing boisterous the next day and night, giving the enemy time to improve their works, to bring up their cannon, and to put themselves in such a state of defence, that I could promise myself little success in attacking them under all the disadvantages I had to encounter.

William Howe, 5th Viscount Howe, in a letter to William Legge, 2nd Earl of Dartmouth, about the British army's decision to leave Boston, dated March 21, 1776.

Many crucial events of the American Revolution occurred in or near Boston. The then-town's mob presence, along with the colonists' growing lack of faith in either Britain or its Parliament, fostered a revolutionary spirit there. When the British parliament passed the Stamp Act in 1765, a Boston mob ravaged the homes of Andrew Oliver, the official tasked with enforcing the Act, and Thomas Hutchinson, then the Lieutenant Governor of Massachusetts. The British sent two regiments to Boston in 1768 in an attempt to quell the angry colonists. This did not sit well with the colonists, however. In 1770, during the Boston Massacre, British troops shot into a crowd that had started to violently harass them. The colonists compelled the British to withdraw their troops. The event was widely publicized and fueled a revolutionary movement in America.

In 1773, Parliament passed the Tea Act. Many of the colonists saw the act as an attempt to force them to accept the taxes established by the Townshend Acts. The act prompted the Boston Tea Party, where a group of angered Bostonians threw an entire shipment of tea sent by the East India Company into Boston Harbor. The Boston Tea Party was a key event leading up to the revolution, as the British government responded furiously with the Coercive Acts, demanding compensation for the destroyed tea from the Bostonians. This angered the colonists further and led to the American Revolutionary War. The war began in the area surrounding Boston with the Battles of Lexington and Concord.

Boston itself was besieged for almost a year during the siege of Boston, which began on April 19, 1775. The New England militia impeded the movement of the British Army. Sir William Howe, then the commander-in-chief of the British forces in North America, led the British army in the siege. On June 17, the British captured Charlestown (now part of Boston) during the Battle of Bunker Hill. The British army outnumbered the militia stationed there, but it was a pyrrhic victory for the British because their army suffered irreplaceable casualties. It was also a testament to the skill and training of the militia, as their stubborn defense made it difficult for the British to capture Charlestown without suffering further irreplaceable casualties.

Several weeks later, George Washington took over the militia after the Continental Congress established the Continental Army to unify the revolutionary effort. Both sides faced difficulties and supply shortages in the siege, and the fighting was limited to small-scale raids and skirmishes. The narrow Boston Neck, which at that time was only about a hundred feet wide, impeded Washington's ability to invade Boston, and a long stalemate ensued. A young officer, Rufus Putnam, came up with a plan to make portable fortifications out of wood that could be erected on the frozen ground under cover of darkness. Putnam supervised this effort, which successfully installed both the fortifications and dozens of cannons on Dorchester Heights that Henry Knox had laboriously brought through the snow from Fort Ticonderoga. The astonished British awoke the next morning to see a large array of cannons bearing down on them. General Howe is believed to have said that the Americans had done more in one night than his army could have done in six months. The British Army attempted a cannon barrage for two hours, but their shot could not reach the colonists' cannons at such a height. The British gave up, boarded their ships, and sailed away. This has become known as " Evacuation Day ", which Boston still celebrates each year on March 17. After this, Washington was so impressed that he made Rufus Putnam his chief engineer.