Friday, April 20 was another opportunity for students to make their voices heard. On the anniversary of the infamous shooting at Columbine High School, students rallied together for a National School Walkout. Students across the country left their classrooms in solidarity, protesting for better Gun Control and an end to mass shootings in America.

The movement itself, inspired by the Parkland students, is a huge moment for the nation. But so are the social media posts people have been putting up all day long. Each comes at the National School Walkout from a different, unique perspective. They gave themselves even more power in the fight against Gun Violence.

Here are some of the prominent posts from the National School Walkout.

Jumping on Twitter

Congressman John Lewis was one of many politicians who highlighted the National School Walkout. His lifelong civil rights journey has been well-documented, so his support for the cause is vital.

Another congressman also chimed in. Bernie Sanders - who has become a leading voice on behalf of the country's youngest citizens - supported the day of action. He congratulated the leaders of the movement on changing the world.

Many of the Parkland students also spoke out in the same way they have been for over two months.

David Hogg is one of those students-turned-activists. He brought up the lasting impact the event will have on the political realm.

Another survivor chimed in as well. He detailed the need for marchers to never settle for anything less than what they demand.

One of the more viral posts of the day, however, came from a lone student. Her name is Havana, known on Twitter as "The Tiny Diplomat." Her story was picked up by Teen Vogue, ABC, and other publications around the country. Here's what she posted:

The fact that she was wearing a NASA outfit represents the power of representation, hearkening back to the 2016 hit movie "Hidden Figures."

What's next

The National School Walkout was the second major day of action led by the students from Marjory Stoneman Douglas High School.

It's hard to imagine it will be the last [VIDEO].

A report from Reuters suggests that over 2,600 schools in the United States took part on Friday [VIDEO]. That's a drop in the bucket compared to the mountains the movement is trying to move. Their goal is to lead the way to the voting booth, with young people ousting career politicians funded by the NRA. They'll need some momentum to achieve that goal, but there's no reason to doubt them now.