21 protesting "Oplan Sagittarius", a plan by Marcos to declare martial law. Marcos would later sign martial law into declaration after his nervous reaction to the event a few hours earlier. Main collection The main collection of the museum features objects associated with the recognized heroes and martyrs, as well as with the historical period of the Marcos dictatorship, and hopes to make the history of the period come alive for visitors by showing them that the horrors of martial law happened to real-life men and women. The museum primarily focuses on the years of Marcos' rule from 1965 to 1986, with a particular focus on events that took place after the 1972 declaration of Martial Law. But in order to provide historical context, it also briefly covers events that took place before Marcos' presidency in 1965 and in the period immediately after the EDSA Revolution, up to approximately 1987. Replica jail cell One of the highlights of the Bantayog Museum's collection is a replica jail cell based on the memory of Martial Law victim Hilda Narciso, a church worker who was arrested by Marcos' Martial Law forces, subjected to rape and torture, and was held with 20 fellow detainees in a cell no bigger than two or three square meters. Diagram of resistance organizations An often-overlooked display at the Bantayog Museum presents a diagram of various organizations who were involved in the resistance against the excesses of the Marcos dictatorship, ranging from conservative groups, including faith-based organizations such as the Negros Occidental Women Religious Association (NOWRA), and the Task Force Detainees of the Philippines, and business organizations such as the Makati Business Club; to progressive organisations like the Kilusang Mayo Uno, and many groups in between. While not a flashy display, academics have noted that the diagram is one of the most complete compilations of resistance groups to have been made public thus far. Hall of Remembrance Beside the main gallery of the museum is a permanent exhibit called the "Hall or Remembrance," which provides more details about the lives of the heroes and martyrs honored on the Wall of Remembrance outside. The Hall or Remembrance groups the heroes and martyrs into the various sectors that came together to fight the dictatorship, and features "capsule biographies" of each honoree. Other exhibits Other significant displays at the Bantayog include artifacts such as the Senate Seal used during the term of