Just before this BBC podcast gets underway, here's something you may not know.

My name's Linda Davies and I Commission Podcasts for BBC Sounds.

As you'd expect, at the BBC we make podcasts of the very highest quality featuring the most knowledgeable experts and genuinely engaging voices.

What you may not know is that the BBC makes podcasts about all kinds of things like pop stars,

poltergeist, cricket, and conspiracy theories and that's just a few examples.

If you'd like to discover something a little bit unexpected, find your next podcast over at BBC Sounds. Hello and welcome to the Witness History Podcast from the BBC World Service.

All this week on Witness History we've been looking back at moments of protest and resistance

and today we go back to the 1970s and the start of a remarkable and

courageous campaign by women in Argentina. In April 1977 with the country

under repressive military rule a group of women held the first

ever public demonstration to demand the release of their sons and daughters detained or disappeared

by the regime. They became known as the mothers of the Plaza

de Mayo. Mike Lanchen spoke to one of them in 2017. We were always hopeful that from one moment to the next we were going to get answers.

That's what kept us going.

If we never thought we'd get any results. I think it would have been

better to stay at home. This is Merta Baravaye. She's one of the original mothers of the

Placer de Mayo. She has dedicated half her life to the search for the victim. of the her daughter Anna Maria, her son-in-law Julio, and their child, Merta's grandchild.

Anna was 28 years old when they took her.

As a young girl, she was always asking questions.

Like, why were the children without shoes in the streets?

What's the government doing about this or that?

For me, Anna was from a generation that grew up committed to improving life for the rest of us. The 1950s and

...