Task: Data Analysis / Position Bias Error
User instruction:
The Boston Tea Party was a seminal American political and mercantile protest on December 16, 1773, during the American Revolution. Initiated by Sons of Liberty activists in Boston in colonial Massachusetts, one of the original Thirteen Colonies in British America, it escalated hostilities between Britain and American Patriots, who opposed British colonial mercantile and governing practices. Less than two years later, on April 19, 1775, the Battles of Lexington and Concord, also in Massachusetts, launched the eight-year American Revolutionary War between the British and the Thirteen Colonies, which ultimately prevailed, securing their independence and the establishment of the sovereign United States of America.
The target of the Boston Tea Party was the British implementation of the Tea Act of May 10, 1773, which allowed the East India Company to sell tea from China in the colonies without paying taxes apart from those imposed by the Townshend Acts. The Sons of Liberty strongly opposed the Townshend Act taxes, which they saw as a violation of their rights as Englishmen to "no taxation without representation.
The September 11 attacks, commonly known as 9/11, were four coordinated Islamist terrorist suicide attacks by al-Qaeda against the United States in 2001. Nineteen terrorists hijacked four commercial airliners, crashing the first two into the Twin Towers of the World Trade Center in New York City and the third into the Pentagon (headquarters of the US Department of Defense) in Arlington County, Virginia. The fourth plane crashed in a rural Pennsylvania field during a passenger revolt. The September 11 attacks killed 2,977 people, making it the deadliest terrorist attack in history. In response to the attacks, the United States waged the multi-decade global war on terror to eliminate hostile groups deemed terrorist organizations, as well as the foreign governments purported to support them.
What was the second event: the September 11 attacks or the Boston Tea Party?

Evaluation criteria:
You must state that the September 11 attacks as the second event.
When mentioning the years of each event, clearly specify that the Boston Tea Party occurred in 1773 and the September 11 attacks in 2001.