The Plaza's official history says The Beatles spent five days living at the hotel during their first American visit and dates their February 1964 arrival; restored documentary reporting independently places the band inside the property.
The Beatles stayed at The Plaza in New York for five days during their first visit to the United States in February 1964. The hotel's official history says the band spent five days living at the property and dates their arrival and an on-property press conference. Restored documentary footage and independent historical reporting corroborate the accommodation.
Source conclusion:
The cited sources support a stay at the named hotel.
