Complex sentence: For many decades the hotel had catered to an "exclusive" clientele when on July 4,1964, Emerson and Jane Reed became the first African-American couple to overcame segregation at the restaurant of the Wentworth.
Split into simpler sentences: For many decades the hotel catered to an "exclusive" clientele. On July 4,1964, Emerson and Jane Reed were the first African-American couple who overcame segregation at the restaurant of the Wentworth.