Birthdates refer to the day, month and year on which an individual was born. However, there are other terms that are synonymous with birthdates. Date of birth, born date, birth year and natal day are some of the other phrases that can be used to refer to a person's birthdate. While these terms may vary in usage and context, they all ultimately point to the same thing - the day a person came into being. Be it for scheduling events, verifying identities or conducting genealogy research, knowing one's birthdate is essential. Hence, having different terms to refer to birthdates gives language more flexibility and diversity in expression.