Respected South Auckland Samoan community leader Aupito William Sio takes up the role of Minister for Pacific Peoples.
The majority of the group paid tribute to their respective cultural backgrounds by wearing some form of traditional Tongan or Samoan dress, while Sio also honoured his motherland by saying his oath of allegiance in fa'asamoa.
Other new Ministers also chose to say their oaths in te reo Maori; including Minister of Corrections, Tourism and Crown/Maori Relations Kelvin Davis, Minister of Forestry and for Infrastructure Shane Jones and Nanaia Mahuta, who takes the reins as Minister for Maori Development.
Others with Maori affiliations are new Minister of Defence Ron Mark and Deputy Prime Minister Winston Peters, who has iwi links to Ngati Wai.
Outside Cabinet, Willie Jackson becomes the new Minister of Employment, Meka Whaitiri is Minister of Customs and Peeni Henare is Minister for Whanau Ora and Youth. Fletcher Tabuteau becomes a parliamentary under-secretary to the Ministry of Foreign Affairs.
Before today's swearing-in ceremony, Sepuloni posted a photo of the unique group on her Twitter page.
She wrote: "13 Maori and Pacific Ministers being sworn in today. So excited to be part of this Government.''
Previous governments have also had several ministers of various cultural backgrounds - Pacific, Maori and Asian - serving at different times, but not as many as those who will serve at the same time in this new Government make-up.
Many people within the Pasifika community have expressed their congratulations to the new ministers or commented about the feat on social media sites; acknowledging that the new Government reflected the New Zealand of today.
Bernadette Pereira, the head of Pacific women's group Pacifica Inc, said it was wonderful for the local Pacific community.
"It is a proud moment for the Pacific communities around New Zealand to have good Pacific representation in Parliament at ministerial level.''
Salesa acknowledged how far she had come and therefore, how very achievable it was for others like her - an immigrant - to follow.
"I am immensely proud, as an immigrant and as a Pacific woman, to show that anyone who comes here can dream big and can be successful through perseverance and hard work at whatever they set out to do.
"New Zealand was a land of opportunity for me and as a Cabinet Minister, I can play a part in ensuring it remains so for everyone who chooses to live here."