Question: Sons of Neptune were involved in which political protest that took place on December 16, 1773?

Context paragraphs:
Berber Spring: The Berber Spring (in Berber: Tafsut Imaziɣen or simply Tafsut for "Spring") was a period of political protest and civil activism in 1980 claiming recognition of the Berber identity and language in Algeria with events mainly taking place in Kabylie and Algiers.  The background was marked by two decades of harsh Arabization measures instituted by the Arab nationalist FLN dictatorship government, which refused to recognize Algeria's Berber identity and banned the Berber language altogether.

Arun Pathak: Arun Pathak is an Indian politician and social activist from Varanasi.  He is the chief general secretary and spokesperson of Shiv Sena in Uttar Pradesh state.  He is involved in charity work and campaigns for "protection of Hindu culture".  He has attracted public attention for staging suicide attempts as a form of political protest.

Qidong protest: The Qidong protest was an environmental protest against a proposed waste water pipeline in the Chinese city of Qidong, Jiangsu province.  The protest took place on 28 July 2012.  The pipeline, which would have dumped industrial waste water into the sea, was to be part of a paper factory owned jointly by Japan's Oji Paper Company.  Thousands of citizens took to the streets demanding the cancellation of the project, citing environmental concerns.  An estimated 1,000 protesters stormed government offices, overturning vehicles, and forcing the city's mayor to strip off his shirt and instead wear a T-shirt with protest messages.  Protests ended after the government promised to permanently suspend the project.

Fernando Tordo: Fernando Tordo (born March 29, 1948, in Lisbon, Portugal) is a singer and composer.  In 1969, he made his singing debut on Portuguese television, while competing to represent his country in the Eurovision Song Contest (ESC).  He would try again for the next three years until he finally won in 1973, with his song "Tourada", a political protest song.  He competed in the ESC that year in Luxembourg, where he finished in 10th place.  Then, in 1977, he competed in the ESC in London, this time, as part of the group, Os Amigos, singing the song, "Portugal No Coração" or "Portugal in my Heart".  The song came in 14th place.

Edenton Tea Party: The Edenton Tea Party was a political protest in Edenton, North Carolina, in response to the Tea Act, passed by the British Parliament in 1773.  Inspired by the Boston Tea Party and the calls for tea boycotts and the resolutions of the first North Carolina Provincial Congress, 51 women, led by Penelope Barker, met on October 25, 1774, and signed a statement of protest vowing to give up tea and boycott other British products "until such time that all acts which tend to enslave our Native country shall be repealed."

Boston Tea Party: The Boston Tea Party was a political protest by the Sons of Liberty in Boston, Massachusetts, on December 16, 1773.  The demonstrators, some disguised as Native Americans, in defiance of the Tea Act of May 10, 1773, destroyed an entire shipment of tea sent by the East India Company.  They boarded the ships and threw the chests of tea into Boston Harbor.  The British government responded harshly and the episode escalated into the American Revolution.  The Tea Party became an iconic event of American history, and since then other political protests such as the Tea Party movement have referred to themselves as historical successors to the Boston protest of 1773.

Freiheit statt Angst: Freiheit statt Angst (Freedom not fear) is a political protest march, repeatedly taking place in Germany since 2006.  The main issue is citizens' data privacy.  The protests in Berlin in the last years were the largest demonstrations against public surveillance since the boycott of the census in West Germany in the 1980s.

Sons of Neptune: The Sons of Neptune was a group of colonial sailors directly associated with the Sons of Liberty before and during the American Revolution.  The Sons of Neptune began to defend themselves against trade restrictions imposed by the British.  They were involved in the Stamp Act Crisis, the Townsend Acts, and the Boston Tea Party.  The term "Sons of Liberty" was used in America prior to 1765 by Colonel Isaac Barré, who coined the phrase "Sons of Liberty" for those whose rights were threatened by Lord Grenville's proposed stamp tax.  This group of patriots was formed in New York by Isaac Sears.

1937 peasant strike in Poland: 1937 peasant strike in Poland, also known in some Polish sources as the Great Peasant Uprising (Polish: "Wielki Strajk Chłopski" ) was a mass strike and demonstration of peasants organized by the People's Party and aimed at the ruling "sanacja" government.  It was the largest political protest in the Second Polish Republic, taking place in 12 voivodeships of the Second Polish Republic.  It is estimated that several million peasants took part in the demonstrations, and the strike was supported not only by Polish peasants, but also by the Ukrainian and Belarusian farmers, who made a majority in eastern part of the Second Polish Republic.

Sofia Pride: Sofia Pride Parade is a peaceful march of LGBT people and their relatives and friends, which combines social and political protest with entertaining elements.  It takes place every year in the month of June in Bulgaria's capital Sofia since 2008.  The first Sofia Pride parade was held on June 28, 2008,on the same date as the Stonewall riots in New York City that occurred in 1969.

Supporting paragraphs: Sons of Neptune Boston Tea Party
Answer: Boston Tea Party