A "Birth Date" is the specific day, month, and year when a person is born. It is an important piece of information used for various purposes, such as identifying age, celebrating birthdays, and determining zodiac signs. For example, someone born on January 1, 2000 would have a birth date of January 1st. In many cultures, a birth date is celebrated annually with a birthday party or special traditions. It can also be used in legal documents, such as birth certificates and passports, to verify a person's identity and age.