1) World Cancer Day
2) World Pulses Day
3) World Password Day
4) World Radio Day
Explanation:
The Registrar of National Day Calendar has designated the first Thursday of the month of May of each year as World Password Day. This day is celebrated to promote better password habits for digital protection for online shopping, dating, banking, social media, private work, and life communications. For the very first time, security researcher, Mark Burnett encouraged people to have a “password day,” where they updated important passwords in his 2005 book Perfect Passwords.Inspired by his idea, Intel Security took the initiative to declare the first Thursday of May every year as World Password Day. The declaration was done in May 2013.