Published.: March 16th, 2026
 

Every March 20th, Costa Rica commemorates the Battle of Santa Rosa, which took place in 1856 when national forces defeated the filibuster army led by William Walker. This event marked the beginning of the National Campaign of 1856–1857 and represents a symbol of patriotism, unity, and the defense of national sovereignty. The date is remembered through civic, educational, and cultural activities that strengthen historical identity and national values.

History

  • Historical context:

    On March 20, Costa Rica commemorates the Battle of Santa Rosa, which took place in 1856, when Costa Rican forces defeated the filibuster army led by William Walker. This event marked the beginning of the National Campaign of 1856–1857, a crucial effort to defend the sovereignty and freedom of Costa Rica and Central America.

  • Course of the battle:

    The battle occurred at Hacienda Santa Rosa, located in Guanacaste. Under the command of President Juan Rafael Mora Porras, Costa Rican troops achieved a rapid and decisive victory within minutes, expelling the filibusters from national territory.

  • Present-day significance:

    Today, this date is recognized as a symbol of patriotism, national unity, and the defense of sovereignty. In Costa Rica, civic, educational, and cultural activities are held to remember the historical importance of this event and to honor those who participated in the National Campaign.

Labor legislation:

    Official date:

    Friday, March 20, 2026.

    Type of observance:

    National civic commemoration in Costa Rica.

    Type of holiday:

    It is not a mandatory paid public holiday under the Costa Rican Labor Code.

    Institutional framework:

    The commemoration of the Battle of Santa Rosa is promoted by educational institutions, public entities, and cultural organizations as part of the country’s historical memory and civic education.

Regulatory context:

"March 20 commemorates the Battle of Santa Rosa, one of the most significant events in Costa Rican history, symbolizing the defense of national sovereignty against the filibuster threat."

"This date is not established as a mandatory or non-mandatory paid national holiday in the Labor Code; therefore, work activities proceed as usual."

"Educational and government institutions usually hold civic ceremonies and commemorative activities to strengthen national identity and historical awareness."

Source: Costa Rican History — National Campaign of 1856–1857

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Commemoration of the Battle of Santa Rosa