2. Mexico 's national anthem was written
by Francisco Bocanegra and Jaime
Nuno. The national anthem is one of
the three official national symbols of
Mexico .
3. Although known and used as such
since 1854 , only it became official
since 1943 from a decree issued by
President Manuel Avila Camacho.
4. The words of the hymn , refers to Mexican
victories in battle and is about homeland
defense . The national anthem invites all
Mexicans take their weapons and fight
anyone who tried to invade our country.