Does anyone know how national marches are organized?

[LAS14]

I'm very excited about the prospect of the March 24 March for our lives. I hope it happens in EVERY CITY in the U.S. It's already been established for Boston Common. But I'm curious about how these things spread. Who decides to organize a march? Is there some central coordinating activity in Parkland? Is the first group to sign up for a venue the responsible group?

So glad to have DU around so I can be optimistic about getting an answer!

TIA
LAS

[gibraltar72]

1. Someone says lets march

somebody says dilly dilly. Pretty soon you've got a thing. Or you could have Putin put it on Twitter or Facebook.

[displacedtexan]

2. Exactly.

Someone says, "Let's have a march!" And posts it on facebook or twitter. They ask everyone to retweet or share, and soon people from all over start volunteering to be in charge of various cities' involvement. From there, a list of participating cities is posted, and volunteers find their nearest venue info.