he drew a birthday cake in the sand of the house and Hagrid gave him a real cake
Harry celebrated his fourteenth birthday shortly before the book began.
Harry Potter celebrated his eleventh birthday on the 31st July 1991. He was born on the 31st July 1980.
On his eleventh birthday (first book) Hagrid tells Harry that his parents were killed and did not die in a car accident.
His 16th birthday
Near the beginning of the first book, Harry celebrates his 11th birthday; each book basically covers a full year, so 13.
In the first Twilight book, Bella asks how old Carlisle is. Edward replies, "He just celebrated is 362nd birthday."
17th
A book from hermione,a sneakoscope from ron,and the monster book of monsters from hagrid.
Harry Potter turns 15 in the 5th book, its a rather easy system really, all of the books start arround the same time of year, starting when hes eleven and progressing one year each book, harry turns 11 in the first book, 12 in the second, 13 in the third, and so on and so forth.
Hermione gave Harry a broom servicing kit for his birthday.
In the first book, The Sorcerer's Stone, Harry and Hagrid visit Gringotts to get Harry some money and there they also empty the vault with the stone. Shortly after they empty the vault, there was an attempted theft of the stone.
dr. seuss