Socialism emerged as a political movement during the Industrial Revolution, advocating for the collective ownership of the means of production and the equitable distribution of wealth.

The Civil Rights Act of 1964 outlawed discrimination based on race, color, religion, sex, or national origin in employment, public accommodations, and government programs.

Fourth Wave Feminism emerged in the early 21st century, characterized by its focus on intersectionality, online activism, and the use of social media to raise awareness about gender inequality.

Liberalism is a political ideology that advocates for individual liberty, limited government intervention, and free market capitalism.

The Paris Agreement, signed in 2015, is an international agreement that aims to limit global warming and address climate change by reducing greenhouse gas emissions.

Republicanism emerged in the late 18th century, advocating for the overthrow of the monarchy and the establishment of a republic, where power is held by the people through elected representatives.

Nelson Mandela, a prominent leader of the African National Congress, became the first black president of South Africa in 1994 after the end of apartheid.

Communism is a political ideology that advocates for the collective ownership of the means of production and the elimination of class divisions.

The hashtag #BlackLivesMatter became a symbol of the Black Lives Matter movement, raising awareness about police brutality and racial injustice.

The Labor Movement emerged in the 19th century, advocating for the rights of workers and the improvement of working conditions, leading to the formation of trade unions and labor laws.

Obergefell v. Hodges was a landmark Supreme Court case in 2015 that legalized same-sex marriage in the United States.

Fascism is a political ideology that emphasizes the importance of national unity, strong leadership, and the subordination of individual interests to the collective.

The Vietnam War was the focus of widespread anti-war protests in the 1960s and 1970s, with activists calling for an end to the conflict and the withdrawal of troops.

The Indigenous Rights Movement emerged in the 20th century, advocating for the rights of indigenous peoples and the recognition of their cultural heritage, leading to the adoption of international declarations and the establishment of indigenous rights organizations.

The Abolitionist Movement emerged in the 19th century, advocating for the abolition of slavery and the emancipation of enslaved people, leading to the end of the transatlantic slave trade and the eventual abolition of slavery in many countries.