Indigenous activists have campaigned for decades for the acceptance of the holiday, saying that celebrating the arrival of Columbus is tantamount to rejoicing in the decimation of Native American populations across the continent.
"Phoenix just recognised the day, the largest city to do so," Jose Matus, the executive director of the Arizona-based Alianza Indigena Sin Fronteras (AISF), Spanish for Indigenous Alliance Without Borders, told Al Jazeera in an interview.
The first city to recognise the day was Berkeley, California, in 1992.
The struggle of native population is important to those involved in other movements, according to Maryam Pugh, the Co-Founder of Philadelphia Printworks (PPW), a grass-roots attire company founded in 2010 that places symbols and quotes from icons of the African-American community on its products.
PPW hosted a sale to commemorate Indigenous People's Day.