71. Bone and Joint Day is observed on:

72. International Day of Families is celebrated on:

73. World Telecommunication Day is observed on:

74. World Hypertension Day falls on:

75. International Day Against Homophobia and Transphobia is observed on:

76. Constitution Day (Norway) is celebrated on:

77. World AIDS Vaccine Day falls on:

78. International AIDS Candlelight Memorial is observed on:

79. World Museum Day is celebrated on:

80. World Day for Cultural Diversity for Dialogue and Development is observed on: