Réponse :
2- Two planes from New York were hijacked and crashed into the famous twin towers
3- It happened on September 11, 2001
4- This event killed around three thousand victims
5- The freedom tower was inaugurated on November 3, 2014
6- The freedom tower is 541m high so 1,776 feet which corresponds to the date of the beginning of American independence against the British
Bonne journée :)