Hundreds of thousands of women take to the streets of Washington DC in the name of women's rights on the first day of Donald Trump's presidency, in what is expected to be one of the largest demonstrations in American history.

Here is everything you need to know about the event.

When is it?

The rally begins at 10am on Saturday 21 January and the march will commence at 1.15pm. The event is not ticketed, so it is open for all to attend.

Where is it?

The starting point and rally will be the intersection of Independence Avenue and SW Third Street in Washington DC, near the US Capitol Building.

Why is the march taking place?

Organisers say the march is not specifically an anti-Trump demonstration but rather a stand on social justice and human rights which have been threatened in America in recent months.

"The rhetoric of the past election cycle has insulted, demonised, and threatened many of us – immigrants of all statuses, Muslims and those of diverse religious faiths, people who identify as LGBTQIA, native people, black and brown people, people with disabilities, survivors of sexual assault – and our communities are hurting and scared," the organisers stated.

Abortion rights
Thousands of women will demonstrate in Washington DC on Saturday 21 January Kamil Krzaczynski/Reuters

"In the spirit of democracy and honoring the champions of human rights, dignity, and justice who have come before us, we join in diversity to show our presence in numbers too great to ignore. The Women's March on Washington will send a bold message to our new government on their first day in office, and to the world that women's rights are human rights."

There are hundreds of sister rallies planned around the world, including London.

Who is scheduled to speak?

Below is the full list of speakers at the Women's March on Washington;

Cecile Richards, president, Planned Parenthood Federation of America

Erika Andiola, activist

Ilyasah Shabazz, activist

J. Bob Alotta, activist and filmmaker

Janet Mock, activist, writer, and television host

LaDonna Harris, activist

Maryum Ali, activist

Melanie Campbell, activist

Rabbi Sharon Brous

Rhea Suh, activist

Sister Simone Campbell, attorney

Sophie Cruz, activist

Zahra Billoo, activist

America Ferrera, actress

Angela Davis, activist, scholar, author

Gloria Steinem, activist

Ashley Judd, actress and activist

Scarlett Johansson, actress

Melissa Harris-Perry, television host

Michael Moore, filmmaker

Amanda Nguyen, activist

Randi Weingarten, attorney

Van Jones, television host

George Gresham, activist

Mothers of the Movement (Sybrina Fulton, Lucia McBath, Maria Hamilton, Gwen Carr — activists)

Hina Naveed, activist

Judith Le Blanc (Caddo), activist

Kristin Rowe-Finkbeiner, author and activist

Aida Hurtado, psychologist

Melissa Mays, activist

Raquel Willis, activist and writer

Rosyln Brock, activist

Sister Ieasha Prime, activist

The Honorable Muriel Bowser, mayor of Washington, D.C.

Ai-jen Poo, activist

Wendy Carrillo, activist

Dr. Cynthia Hale, pastor

Tamika Mallory, Carmen Perez, Linda Sarsour, Bob Bland, Women's March co-chairs