Organizers are expecting more than 1,500 people to participate in Saturday's 2 p.m. March for Our Lives in Railroad Park in Birmingham.

The Birmingham march is one of seven scheduled for Saturday in Alabama. More than 800 marches are being held across the world.

There is officially a march on every continent! — Sarah Chadwick (@Sarahchadwickk) March 17, 2018

The march has been spearheaded by the student survivors of the Feb. 14 Marjory Stoneman Douglas High School shooting where a 19-year-old former student used an AR-15 to shoot and kill 14 students and three faculty members.

Everytown for Gun Safety, a group formed after 26 students and faculty were killed at Sandy Hook Elementary in 2012 is helping to organize the march.

The survivors, who refer to themselves as the "mass-shooting generation," have been vocal in their demand for lawmakers to do something to end school shootings, using #NeverAgain and #ENOUGH as a rallying cry.

Emma Gonzalez, a Parkland survivor, said, "This is not a political rally. It's literally a march for our lives," in a letter posted on the national March for Our Lives website.

Gonzalez and other Parkland survivors will be in Washington, D.C., where they will join half a million people who will march down Pennsylvania Avenue to the U.S. Capitol building at noon Eastern time.

The map below is from the official March for Our Lives events page. Each marker indicates the location of a march.

This map, from the national March for Our Lives website, indicates where a march will be held.

Here's a look at the list of marches being held in Alabama according to the national March for Our Lives website. Click the link for more about each march.

Birmingham - The march starts at 2 p.m. in Railroad Park in Birmingham.

The Shoals (Florence) - The march starts at 2 p.m. at Wilson Park in Florence.

Jasper - The national website lists a march being held at Courthouse Square in Jasper.

Selma - The national website lists a march starting at 12 noon at the Edmond Pettus Bridge.

Montgomery - The march starts at 10 a.m. at the Alabama Capitol building in Montgomery.

Dothan - The March for Our Lives Wiregrass starts at 11 a.m. at Porter Park in Dothan.

Mobile - The march will start at 1 p.m. at Public Safety Memorial Park in Mobile.

Huntsville - The march in Huntsville will be held on Saturday, April 21, at 11 a.m. in Big Spring Park in Huntsville.