Almost 15,000 empty shoes were laid on the grass outside of the U.S. Capitol Tuesday - a memorial for all the children who've died by gun violence in the United States in the last five years.
The memorial comes the day before the scheduled national student walkout to protest gun violence following the Parkland, Florida, high school shooting last month.
The memorial was set up by Avaaz, a group that mobilizes activists largely through online campaigns and petitions.
An activist group on Tuesday placed 7,000 pairs of shoes on the lawn in front of U.S. Congress, in protest against lawmakers' inaction in face of frequent school shootings in the country. The shoes will be donated when the monument is dismantled later today.
The event was planned by Avaaz, an worldwide advocacy group, that has done similar events before.
The Parkland shooting was the deadliest school shooting since 26 - 20 students and six teachers - were killed in 2012 at Sandy Hook Elementary School in Newtown, Connecticut. Approximately five years and three months passed between the Sandy Hook shooting and the demonstration; in that period of time by those figures, the number of children killed by guns would be roughly 6,825. "Culture is changing in America right now".
Although there was no link to any figures or date, Avaaz said the study found that guns kill an average of "1,300 American kids a year".
The protest was the latest movement from activists groups to call on lawmakers to take steps to curb rampant shooting incidents in USA schools.
Avaaz, a global organization that coordinates demonstrations for progressive causes, created the shoe installation on the southeast lawn at about 8 a.m.