During Colombia's struggles for independence, patriots and royalists fought all across the nation. When the royalists and Spanish were in power, they often rounded up and arrested patriot sympathizers. Policarpa Salavarrieta and her brother Bibiano entered Bogota with false documents to serve as spies for the patriots. Policarpa would work as a seamstress in the homes of royalist officers and leaders and listen to conversations, particularly those about suspected patriots. She also helped recruit young men to the patriot cause. She was captured, tried and executed by the Spanish in 1817. On the back of the bill is the central square of the town of Guaduas, hometown of Policarpa Salavarrieta.