1-1815: The Battle Of New Orleans; “chiefly raw militia, a considerable portion unarmed, and from the haste of their departure, badly supplied with clothing. All the private arms which the inhabitants possessed were collected”

The Battle Of New Orleans, “chiefly raw militia, a considerable portion unarmed, and from the haste of their departure, badly supplied with clothing. All the private arms which the inhabitants possessed were collected”, January, 1815

Which is precisely the same thing that had occurred during our Revolution:

In Provincial Congress, Watertown, “can best spare their Arms or Accoutrements”, April 23, 1775

Committee-Chamber, New York, “That any person in this city, or county, who has arms”, May (?), & May 9, 1775

The Journals Of Each Provincial Congress Of Massachusetts, “to apply to such inhabitants of their respective towns and districts as, in their opinions, can best spare their arms or accoutrements, and to borrow or purchase the same”, May 9, 1775

George Ross to the Lancaster County Committee of Correspondence, “to Recommend to Such Persons to lend their Arms to those who are not Able to purchase for themselves”, June 1, 1775

In Provincial Congress, Watertown, “who may have good and sufficient Fire-Arms and Bayonets”, June 15, 1775

In Provincial Congress, “the Inhabitants . . . who may have good and sufficient Firelocks”, June 17, 1775

   There are quite a few other historical examples that can be found here:

Right To Be Armed 

 Origins