PARIS – Women worldwide took to the streets Tuesday to mark the 100th International Women's Day, with protests against honour killings, the objectification of women in Italy and the shooting of seven women in Ivory Coast.

Drawing inspiration from the boardrooms of Finland and the toppling of autocratic regimes in Tunisia and Egypt, demonstrators staked their claim for equality, education and a better life.

A month before Silvio Berlusconi goes on trial over allegations he paid an underage prostitute for sex, hundreds of Italian women rallied in Rome.

"Here women have sex with someone powerful to get into parliament. Women are treated like objects. I'm ashamed to have a prime minister like Berlusconi," said protester Irene D'Onfronio, 62.

In Turkey, women chanted "Don't Turn Our Wedding Dresses into Shrouds", as they marched against honour killings, the murder of women by a male family member because she is deemed to have brought shame on the family.

Hundreds of women demonstrated in Ivory Coast, meanwhile, to condemn the killing of seven women at a rally last week demanding that strongman Laurent Gbagbo quit the presidency after losing elections.

Mostly dressed in white and wearing red headbands, they marched to "pay homage to the women killed", an organiser said. "We are not going to stop demonstrating until Laurent Gbagbo leaves."

In Guatemala, where a culture of impunity saw nearly 700 women killed in 2010 alone, the head of a commission on "femicide" called for a specific statute on the killing of women.

Palestinian women took to the streets of Gaza to call for an end to the Israeli occupation.

In the West Bank town of Beit Ummar, dozens of women blocked a major road for half an hour to protest Israeli roadblocks.

"Part of the women's rights issue is the harm caused by the Israeli occupation," said activist Fadwa Khader. "Can you imagine women being woken up and kicked out of their homes in the early morning so their homes can be demolished to make way for settlements?" she asked.

"We are talking about human rights and women's rights," she said.

The European Union used the occasion to hail women's "crucial role in bringing about change in northern Africa".

"Amidst violence, women have joined the struggle for change," said the two women vice-presidents of the European Commission, Catherine Ashton and Viviane Reding. "Women must be at the heart of the discussions over the future order."

Whether in T-shirts and jeans or robes and veils, tens of thousands of women have recently made their voices heard on the streets, from Tunis to Cairo, from Manama to Sanaa, to demand reform in a region long ruled by autocracies.

Many around the world focused on gender equality, which OECD Secretary-General Angel Gurria called "a moral imperative as well as an economic necessity".

"As we confront the scars of the financial crisis and search for new sources of growth, we cannot waste women?s economic contributions," he said.

Visiting Finland -- a country whose political leadership is top-heavy with women -- US Vice President Joe Biden echoed the call, saying education of girls was the key to future global stability.

"The single most significant thing we can do in the 21st century to improve the prospect of peace and security is to educate more women," Biden said, standing alongside Finnish President Tarja Halonen.

Biden praised gender equality in Finland, where the president, prime minister and opposition leader are all women.

In Greece, where the economic crisis has thrown disproportionately more women out of work, feminists staged a flash mob dubbed "Three Minutes Without Women" in a central square of Athens.

In Norway -- the first country in the world to force large companies to gender balance their boardrooms -- officials said the quotas should be extended to more companies.

The feminisation of boardrooms "is going much too slowly", said Trade and Industry Minister Trond Giske.

A Moroccan human rights group called for the kingdom to inscribe gender equality in the constitution.

A leading rights activist in Morocco, where laws protecting girls from forced marriages are poorly enforced, blamed entrenched mindsets.

The minimum age of marriage for women was raised to 18 from 15 in 2004 unless a judge grants special permission. Still, about 42,000 requests to marry minors were made in 2009, mostly in rural areas.

Cambodian women were unable to mark the day publicly, as authorities banned a rally amid growing concern about a crackdown on freedom of expression in the country.