The collection contains a data set of tweets collected from the Twitter microblogging and social networking service regarding anti-government protests in Cuba and the diaspora that began in July 2021. According to Reuters, Cubans across the the island gathered in the streets chanting "freedom" and calling for President Miguel Díaz-Canel to step down from office. The Cuban police responded with violence against protestors. The protests took place in the context of surging coronavirus infections, a weakened economy, shortage of basic goods, and curtailing of civil liberties. Many Cubans in the diaspora rallied in support of the protestors, with some calling for U.S. intervention in Cuba. The Cuban government blamed the country's economic condition on the U.S. embargo against Cuba, and claimed protestors were being manipulated by U.S.-based social media campaigns.

The Cuban Heritage Collection collected tweets relating to the following accounts, phrases and hashtags: @Mona_Cuba, @MGVivero, @PresidenciaCuba; Cuba, Cuba AND Freedom; #SOSCuba, #PatriayVida, #FreeCuba, #NoTenemosMiedo, #FreeHamletLavastida, #AbajoLaDictaduraCastrista, #CorredorHumanitarioYa, #FuerzaMatanzas, #FuerzaCuba, #DiazCanelSingao, #CubaProtests, #VivaCubaLibre, #SomosCuba, #SomosContinuidad, #VivaCuba, #LaCalleEsDeLosRevolucionarios, #CubaPorLaVida, #CubaUnida, #CubaSoberana, #PatriaOMuerte, #EliminaElBloqueo, #AbajoElBloqueo, #EndTheBlockade, #CubaEsNuestra, #YoSigoADiazCanel and #11JCuba.

The tweets collected by the Cuban Heritage Collection for this data archive do not represent an exhaustive or complete record of all tweets relating to the targeted hashtags due to restrictions on tweet volume accessed via the Twitter API.

The papers document activities of Alberto Fernández-Medrano who was a Secretary, Vice-President and President of Lions Club of Florida, Camaguey, Cuba and a member of the Committee for International Relations. Fernández-Medrano was shot by Castro's Government in 1964. Materials consist of typescripts of anti-communist and anti-Castro writings including a typescript of a book "La unica alternativa: democracia o comunismo," correspondence, clippings, certificates and other documents.

The records document activities of Movimiento Cristiano Liberación, a movement dedicated to fighting Castro's dictatorship using peaceful measures.  The materials include reports on political, economic and social situation in Cuba, presentations and correspondence.

The Movimiento San Isidro Oral History Project documents the Movimiento San Isidro, a social and political movement created by a group of Cuban dissident artists protesting the country's Decree 349 that requires artists to obtain prior approval from the Ministry of Culture to perform in public and private spaces. The group protests police violence, with some members using non-violent methods of resistance such as hunger strikes to bring attention to their cause.

The collection contains a data set of tweets collected from the Twitter microblogging and social networking service regarding the Movimiento San Isidro, a social and political movement created by a group of Cuban dissident artists protesting the country's Decree 349 that requires artists to obtain prior approval from the Ministry of Culture to perform in public and private spaces. The group protests police violence, with some members using non-violent methods of resistance such as hunger strikes to bring attention to their cause.

Beginning in November 2020, the Cuban Heritage Collection collected tweets relating to the following accounts, phrases and hashtags: @Mov_sanisidro, @LMOAlcantara, @MaykelOsorbo, @CubaCultura, #TodosSomosSanIsidro, #FreeDenis, #LiberenADenis, #LibertadParaDenis, #EstamosConectados, #FuerzaCuba, #SomosCuba, #CubaEsCultura, M-26-11 AND Cuba, #unidad AND Cuba, #Luisma AND Cuba, #CubaDeTodos, #TodosConSanIsidro, #NoALaViolenciaPolicial, #DondeestáLuisManuelOtero, and #CubaYChacón.

The tweets collected by the Cuban Heritage Collection for this data archive do not represent an exhaustive or complete record of all tweets relating to the targeted hashtags due to restrictions on tweet volume accessed via the Twitter API.