In celebration of Women’s History Month in March, the acclaimed documentary “Strong Sisters,” which tells the story of elected women in Colorado, is available to download for free through the end of March, its producers said Friday.

Women have been getting elected to office in Colorado longer than anywhere else in the world, and the 75-minute film tells their story.

Written and produced by Laura Hoeppner and Meg Froelich, the film features interviews with 76 current and former female elected officials, historians, journalists and campaign strategists.

The title comes from a quote by the irascible former state Sen. Ruth Stockton, a Denver Republican. She said, “The other 90 legislators don’t see my way all the time, but I’m ready to sit down and work it out. When the going gets rough, they know I’m not the weak sister.”

The story starts when Colorado voters approved women’s suffrage in 1893 – decades before women won the right to vote nationally and the first time a state granted women the vote by referendum. Voters elected three women to the Colorado General Assembly the next year, making the state the first parliamentary body in the world to swear in women lawmakers. To this day, Colorado is among the states with the largest share of women serving in its legislature.

The free digital download is available here at the film’s Vimeo page, courtesy the film’s editor, Dan Ketchum. More of his work can be viewed at his home page.

The film’s producers are urging viewers to share the link – https://vimeo.com/255482128 – widely.

“Strong Sisters” debuted March 6, 2016, in Littleton at screenings that featured many of the women involved in its production. It’s been shown at film festivals, panel discussions and special screenings dozens of times since and has aired on public television.

“Strong Sisters” debuted at star-studded screenings March 6, 2016, in Littleton and has been shown dozens of times around the state since, including at film festivals and on public television.

Visit the film’s online home here to find out more, including video clips, historic background, a teacher’s guide and upcoming screenings. A list of public libraries across the state that stock the DVD can be found here.

On March 31, 2015, state Reps. Faith Winter, D-Westminster, and Kit Roupe, R-Colorado Springs, showed a trailer for the documentary on the floor of the Colorado House of Representatives as part of Women’s History Month. Watch their introduction and a preview of the film here: