59 -th day in a year is Feb. 28th

59 - One day on planet Mercury lasts about 59 Earth days.

60 - Domitius Afer, a Roman orator died in the year 60.

61 -- The code for international direct dial phone calls to Australia

62 - the age at which Ed Sullivan introduced the Beatles to America in 1964 !

63 - The number of chromosomes found in the offspring of a donkey and a horse

64 - The number of squares on a chess board.

65 - The protein in egg whites coagulate at 65 degrees C (150 degrees F).

66 is the 6th double number

67 -th day of the year is March 9th or March 8th in a leap year

68 -- a happy number

for more on happy numbers

69 - which looks the same upside down.

70 - "The days of our years are threescore years and ten".

71-
71 is the algebraic degree of Conway's constant, a remarkable number arising in the study of look-and-say sequences.

It is the 20th prime number. The next is 73, with which it composes a twin prime. It is also a permutable prime with 17. If we add up the primes less than 71 (2 through 67), we get 568, which is divisible by 71, 8 times. 71 is the largest supersingular prime. Also, 712 = 7! + 1, making it part of the last known pair of Brown numbers, as (71, 7). It is an Eisenstein prime with no imaginary part and real part of the form 3n − 1. Since 9! + 1 is divisible by 71 but 71 is not one more than a multiple of 9, 71 is a Pillai prime.

71 is a centered heptagonal number.

72 - LXXII in roman numerals

73 - Larry King celebrated 50 years in broadcasting in 2007 at age 73

74 - the atomic number of tungsten

LXXV is roman numerals for 75

76 - In the NBA, it is the name of the Philadelphia 76ers.

77 reminds me of the early 60s detective series "77 Sunset Strip".

78 - The TV show Donny & Marie ran for 78 episodes (1976 - 1979)

79 - LXXIX in Roman Numerals

80 - It is in the title of Around the World in Eighty Days by Jules Verne

81 is one day late for Around the World in Eighty Days by Jules Verne

82 - The number of games in both NBA and NHL regular seasons.

83 - is the ISBN group identifier for Poland

84 - A town in Pennsylvania: Eighty Four

85 - LXXXV or Eighty-five

86 - used as a verb, to "eighty-six" means to "ignore" or "get rid of".

87 - the number of years between the Declaration of Independence and the Gettysburg Address ("Fourscore and seven years ago ...").