Why?

Why is it that among all holy women and men of the Catholic Church, only Saint John the Baptist's birthday is celebrated solemnly in the liturgy of the Church? Of course, apart from Our Lord and Blessed Virgin Mary birthday celebrations. Not even Saint Joseph got his own birthday noted and celebrated in the liturgy. Weird. This speaks volumes about the importance of the life of Saint John the Baptist in the history of salvation. Apart from the birth of Jesus himself and his Mother, the birth of John the Baptist is the third most important birth in the scheme of redemption...Wow.