100 years of protests by women, but which placard is from when?

Protest marches by women's rights campaigners are not just something from the history books.

The Suffragettes film, which hit cinemas on Monday, has renewed interest in the women who took to the streets in the fight to be treated equally to men.

Their story has reminded us that the battle for equality is still being fought in the UK and around the world.

And across 100 years of protest, the clothes may have changed but the words on the placards are strikingly similar.

We've picked out images of women's protest stretching back for a century, but with similar messages to today.

But first see if you can work out which year these placards are from - we've added some filters to make it a little bit harder.

'Working women demand the vote'

This is one of the earliest images from the original suffragette marches, thought to be from 1900. Note that men marched alongside the women in London.

'Equal pay now'

In 1954, demonstrators were angry at the gender pay gap.

Since 1970 it's been illegal to pay workers differently because of their sex.

But the debate has not gone away and men still earn more than women, overall.

'You poor cows'

This demo happened on 21 November 1970 outside the Royal Albert Hall in London.

Inside, the Miss World Contest was taking place. Later a group of activists stormed the stage.

Last year one of them, Sally Alexander, told the BBC she was unhappy at "women being judged by their looks and their bodies" but had "no quarrel with the contestants".

She said: "There was a sense of excitement we were making ourselves heard."

'Rights of women'

OK, so the clothes look a lot like the Asos winter collection but this is 1978 and these women were fighting for better working rights for female employees.

'A woman's right to choose'

This is 1980 and these women are outside the House of Commons campaigning to keep their right to a legal abortion.

'Dead women can't vote'

And this is 2015 as protesters angry at what they describe as "cuts to domestic violence services" targeted the Suffragette premiere in London.

Some lay down on the red carpet to make their point.

Janelle from Sisters Uncut told Newsbeat: "We were very peaceful when we got onto the red carpet, all we did was climb over the barriers."

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