Italy's president said the murder of women could not be tolerated.
In a statement marking the International Day for the Elimination of Violence against Women, Sergio Mattarella said: "Dramatic news stories have shaken the country's conscience.
"A human society that aspires to be civilised cannot accept, cannot endure, this string of attacks on women and murders," he said, adding that violence against women was a failure of society.
Data from the Italian interior ministry shows that 106 women have so far been killed in Italy this year, 55 of them allegedly by a partner or ex-partner.
The protests take place amid a backdrop of public anger and soul-searching over the murder of Ms Cecchettin, a 22-year-old biomedical engineering student who had been due to graduate from the University of Padua last week.
Suspect Filippo Turetta, 21, landed at the Venice airport around mid-morning on Saturday. He was immediately transferred to a prison in the northern city of Verona to face questions in the investigation into Cecchettins death, Italian media reported.
Cecchettin had disappeared after meeting Turetta for a burger at a shopping mall near Venice, just days before she was to receive her degree in biomedical engineering. The case gripped Italy.
Her body was found on Nov. 18 covered by black plastic bags in a ditch near a lake in the foothills of the Alps. Turetta was arrested the following day in Germany.
Cecchettins killing has sparked an unprecedented wave of grief and anger in Italy, where many women say patriarchal attitudes are still entrenched.
Male soccer players in Italy join campaign to eliminate violence against women
Players and coaches across the top mens soccer league in Italy had red marks painted on their faces to promote a campaign for the elimination of violence against women on Saturday.
The initiative coincided with rallies across Italy to mark the International Day for the Elimination of Violence against Women, just as an Italian man suspected of killing his ex-girlfriend was extradited from Germany.
o far this year, 110 bills seeking to restrict discussion of race, U.S. history and LGBTQ people in schools and colleges have been introduced in state legislatures, and 10 became law, according to a new report from the free-speech watchdog group PEN America. Added to the 20 such bills passed in 2021 and 2022, and 10 executive orders and state agency mandates, there are now 40 legal restrictions on educator speech in 21 states.
PEN estimates 1.3 million K-12 teachers and 100,000 public college and university professors are now affected, as are millions of students.
The analysis traces how proponents of what PEN calls educational gag orders have adjusted their tactics over the last three years. The authors say this reveals both rising public opposition to the laws and efforts by the restrictions right-wing backers to steer around political flashpoints. As a result, they say, they expect more and more draconian bills in 2024.
What we have seen this year is that the people who are advocating for these laws are not going to stop because the poll numbers are bad, theyre not going to stop because some parts of the laws have been struck down by the courts, theyre going to continue, says Jeremy Young, program director of PENs Freedom to Learn initiative. Theyre going to continue to evolve these laws in more and more insidious ways.