Veterans Day is a day to be observed to commemorate Armistice Day or the cessation of hostilities at the end of World War I. President Wilson named November 11 the official day to observe Veterans Day as it was the day that hostilities ceased seven months after the Treaty of Versailles was signed to end World War I. 

Congress finally and officially recognized it as a federal holiday in 1926 saying:

Whereas the 11th of November 1918, marked the cessation of the most destructive, sanguinary, and far reaching war in human annals and the resumption by the people of the United States of peaceful relations with other nations, which we hope may never again be severed, and

Whereas it is fitting that the recurring anniversary of this date should be commemorated with thanksgiving and prayer and exercises designed to perpetuate peace through good will and mutual understanding between nations; and

Whereas the legislatures of twenty-seven of our States have already declared November 11 to be a legal holiday: Therefore be it Resolved by the Senate (the House of Representatives concurring), that the President of the United States is requested to issue a proclamation calling upon the officials to display the flag of the United States on all Government buildings on November 11 and inviting the people of the United States to observe the day in schools and churches, or other suitable places, with appropriate ceremonies of friendly relations with all other peoples.

Enjoy spending today with your family and loved ones. See you in school tomorrow!