New videos have surfaced of a Yale professor being protested and yelled at by students for sending an email telling them to ignore people dressed in offensive or racist Halloween costumes last year.

The fallout of the email saw Nicholas Christakis, the master of Silliman College at Yale, and his wife Erika, a faculty member, resign from their positions at the university.

The new videos, which appeared on The Federalist, give a greater insight into what the students were demanding from Christakis, and his defense that cultural appropriation on Halloween is permissible.

Many students in the mob of almost 100 can be seen crying and shouting in the clips, as they scream at Christakis to apologize.

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'I don't understand the issue!': A female student cries while asking Yale professor Nicholas Christakis to apologize for an email he sent about cultural appropriation at Halloween

Christakis was shouted down as he tried to explain why he believed students should be able to wear what they want on Halloween. He has since resigned from Yale

'I understand to the extent that I can some of the struggles that many of you have had' Christakis is heard saying in one of the new videos

In the first video, a student berates Christakis for not knowing her name.

'I was in your class freshman year,' the girl says.

'You were my sophomore year advisor. . . I live here, I eat in the dining hall for all three meals. And you should know my name. My name is Mikayla.'

Another student, who identifies herself as Lisa, then steps in, and becomes emotional while questioning why Christakis won't say that he is sorry for the email.

'So then apologize!' she screams before bursting into tears.

'I don't understand the issue!'

'It is your job to create a place of comfort and home for the students that live in Silliman': Students are seen flaring up as they encircled the professor

Christakis tries at numerous points to interject and explain himself.

'First of all, I would like to apologize for hurting your feelings,' he says at one point.

'In addition I will acknowledge that comes from a very deep and legitimate source of complaint. I understand it. I understand to the extent that I can some of the struggles that many of you have had.'

However, a female student quickly shouts out: 'I do not respect you. I’m looking at the smirk in your face and I’m disgusted.'

She continues: 'I want your job to be taken from you. I don’t want you to have this job. I’m disgusted knowing that you work at Yale University where I will get my degree — where I will look back and think I had to argue with you!'

Hundreds of Yale students and supporters marched across the school's campus in New Haven, Connecticut, last year to protest what they see as racial incidents at the school

A student screamed at Yale faculty member Nicholas Christakis (left), who is married to Erika after he said he would not stop people from wearing offensive Halloween costumes

The scandal that engulfed Christakis and his wife over the email was ignited by one video that surfaced last year and went viral. In it, a female student screams at the professor: 'You should not sleep at night. You're disgusting!'

Mrs Christakis came under attack in October for her response to a request from the Intercultural Affairs Committee that students avoid wearing racially insensitive costumes, such as Native American headgear, turbans or blackface.

Mrs Christakis wrote in an email to students living in the residence hall where she was an administrator that they should be able to wear any costume they wanted.

'Is there no room any more for a child or young person to be a little bit obnoxious, a little bit inappropriate or provocative or, yes, offensive?' she wrote.

'American universities were once a safe space not only for maturation but also for a certain regressive, or even transgressive, experience; increasingly, it seems, they have become places of censure and prohibition.'

In the widely shared web video, a student screamed at Mr Christakis after he said he would not stop people from wearing Halloween costumes that could be seen as offensive

One student (left) launched into a expletive-ridden rant at Nicholas Christakis (right), after he was trying to tell her why he felt the university should not censor what people wear with regard to Halloween costumes

Yale University faculty member Erika Christakis resigned, as did her husband, in the aftermath

The email was one of several incidents on campus that prompted hundreds of students and faculty members to march in protest on November 9 over what they saw as racial insensitivity at the school.

The school also has been dealing with criticism over a residential hall named after John Calhoun, a prominent slave-owning politician, questions about how minorities are treated on campus and allegations that a woman was turned away from a fraternity party because she was not white.

During the 'March of Resilience,' students held signs, including one that read, 'Don't Look Away.'

The marchers were upset over various allegations, including that a woman was denied from a frat party because she was not white

They chanted, 'We out here. We've been here. We ain't leaving. We are loved' as they marched from the Afro-American Cultural Center across campus and past the Sigma Alpha Epsilon house.

After the march, dozens of faculty members contributed to an open letter showing support for Christakis.

University President Peter Salovey held a four-hour forum with students to hear their grievances and then sent a campus-wide email saying he was deeply troubled by the atmosphere there.