phenomenon in the United States truly became defined in the mid- to late-nineteenth century when young people began forming labor strikes in response to their working conditions, wages, and hours. Mary Harris "Mother" Jones organized the first youth activism in the U.S. in 1908, marching 100,000 child miners from the coal mines of Pennsylvania to the U.S. Capitol in Washington, D.C. Youth newspaper carriers soon followed. These actions led the popular media of the times to separate youths' interests from their contemporary adult labor counterparts. This separation continued through the 1930s, when the American Youth Congress presented a "Bill of Youth Rights" to the US Congress. Their actions were indicative of a growing student movement present throughout the US from the 1920s through the early 1940s. The 1950s saw the Student Nonviolent Coordinating Committee bring young people into the larger civil rights movement; in 1959, Martin Luther King Jr. engaged youth activists in protesting against Bull Connor's racist law enforcement practices in Birmingham, Alabama. The spectrum of civil rights, youth rights and anti-war activism of Tom Hayden, Keith Hefner and other 1960s youth laid a powerful precedent for modern youth activism. John Holt, Myles Horton and Paulo Freire were important in this period. Youthful life and expression defined this era. In the 21st century, youth activism in the U.S. has shifted to social media platforms, through which youth have been able to rapidly disseminate information, resources, links, and petitions. Highlights of youth activism throughout the 21st century Youth activism continues to take place in the 21st century at local, regional, national, and international levels. Youth activists today use technology and social media platforms such as Twitter, Instagram, Facebook, and TikTok to shed light on oppression and to highlight problems such as economic inequality, police misconduct, racial injustice, and much more through online platforms. Youth activism has transformed political participation through technology and created a form of engaged citizenship unique to today's young people . A significant shift in civic engagement has happened in the United States due to the rise and accessibility of political information online 2001 Since 2001, various legislation in the United States, commonly known as DREAM, has been proposed to help undocumented migrant youth and young adults who arrived as children. In 2012, President Obama authorized the Deferred Action for Childhood Arrivals (DACA) program, which has a similar purpose. United We Dream is an immigrant youth-led community