During the 1960s the use of manual sign language grew greatly, but it was not until the 1980s that AAC began to emerge as an area in its own right.

During the 1960s and 1970s, the city gained a reputation as a center for liberal politics.

During the 1960s and 1970s, the city gained a reputation as an important center for liberal politics.

During the early 1960s, while also active in ASCII standardization, IBM simultaneously introduced in its product line of System / 360 the 8-bit Extended Binary Coded Decimal Interchange Code ( EBCDIC ), an expansion of their 6-bit binary-coded decimal ( BCDIC ) representation used in earlier card punches.

During the late 1960s, the Baseball Players Union became much stronger and conflicts between owners and the players ' union led to major work stoppages in 1972, 1981, and 1994.

During the 1960s, De Palma began making a living producing documentary films, notably The Responsive Eye, a 1966 movie about The Responsive Eye op-art exhibit curated by William Seitz for Museum of Modern Art in 1965.

During the 1960s the political atmosphere began to gradually change, and attention was once again directed to Chaplin's films instead of his political views.

During the 1960s and 1970s, the CPC experienced a significant ideological breakdown with the Communist Party of the Soviet Union under Nikita Khrushchev, and later, Leonid Brezhnev.

During the late 1950s and early 1960s Brubeck canceled several concerts because the club owners or hall managers continued to resist the idea of an integrated band on their stages.

During the Portuguese Colonial War in the 1960s and the 1970s, the Portuguese Army created an experimental horse platoon, to combat the guerrillas in eastern Angola.

During the next 10 years, Hopper appeared frequently on television in guest roles, and by the end of the 1960s had played supporting roles in several films.

During the late 1960s, with the transfer of these mature programs to the Services, ARPA redefined its role and concentrated on a diverse set of relatively small, essentially exploratory research programs.

During the 1950s and 1960s, Peter van de Kamp of Swarthmore College made another prominent series of detection claims, this time for planets orbiting Barnard's Star.

During the 1950s, 1960s and 1970s, several events occurred which raised the public awareness of harm to the environment caused by man.

During the 1950s and 1960s, the electric guitar became the most important instrument in pop music.

During the 1960s and 1970s hundreds of fossils were found, particularly in East Africa in the regions of the Olduvai gorge and Lake Turkana.

During the 1960s and 70s, Italian filmmakers Mario Bava, Riccardo Freda, Antonio Margheriti and Dario Argento developed giallo horror films that become classics and influenced the genre in other countries.

During the 1960s and 1970s German mathematician Heinrich Heesch developed methods of using computers to search for a proof.

During the prosperity of the 1960s, Fairmount enjoyed a time of building with a new town hall, water works, post office and elementary school.

During the 1960s, when some Virginia counties closed their public schools to avoid racial integration, compensatory private schooling was available only for Caucasian children.

During the 1960s, Gygax worked as an insurance underwriter for the Firemen's Fund in Chicago.

During the 1960s, Spain began imposing restrictions on Gibraltar, culminating in the closure of the border in 1969.

During the 1960s, industrial growth was stimulated by the establishment of the Central American Common Market ( CACM — see Appendix B ).

During the decades of the 1960s and 1970s, the country's economy, spurred mostly by erratically fluctuating traditional agricultural commodities, nevertheless averaged real annual growth of between 4 and 5 percent.

* 1937 – Yekatit 12: During a public ceremony at the Viceregal Palace ( the former Imperial residence ) in Addis Ababa, Ethiopia, two Ethiopian nationalists of Eritrean origin attempt to kill viceroy Rodolfo Graziani with a number of grenades.

** Yekatit 12: During a public ceremony at the Viceregal Palace ( the former Imperial residence ) in Addis Ababa, Ethiopia, two Eritrean nationalists attempt to kill viceroy Rodolfo Graziani with a number of grenades.

During this time, he left Addis Ababa to join the Eritrean Liberation Front.

During the Eritrean War of Independence and famine of the 1980s, food aid was brought to Eritrea and the Ethiopian province of Tigray through this port.

During Eritrean-Ethiopian War from May 1998 to June 2000, R-73 missiles were used in combat by both Ethiopian Su-27s and Eritrean MiG-29s.

During the civil war, the groups fighting the Derg government had a common enemy, so the TPLF allied itself with the Eritrean People's Liberation Front ( EPLF ).

During the colonial period both Tessenei and the Neighbouring village of Ali Ghider ( also written as Ali Gidir ) were the center of a vast agricultural development project using the enormous quantity of waters of the Gash river streaming from the Eritrean highlands towards the Nile and it reaches Atbara river ( a tributary of the Nile ) only during rainy seasons.

During the Eritrean War of Independence ( 1961 – 1991 ), Tessenei was repeatedly bombed, and was subject to severe fighting because of its proximity to the borders of Sudan, from which the Eritrean insurgents receive weapons and supplies, but it was also the first to be liberated in 1988, having suffered extensive damage.

During the Eritrean War of Independence ( 1961-1991 ), the town was the center of organizing and military action by the Eritrean Liberation Front ( ELF ).

During much of this period, a number of Eritreans fought for independence from Ethiopia.

During the South African occupation of Namibia, Ethiopia was one of the country's leading proponents abroad ; Ethiopia and Liberia were the first two states to bring the question of independence for then South West Africa to the United Nations.

During this period, Essex kings were issuing their own sceattas ( coins ), perhaps as an assertion of their own independence.

During the war, the Soviet Union's role was negligible, making Albania the only nation occupied during World War II whose independence was not determined by a great power.

During the 1950s, when the independence of Ghana was in sight, demands grew for a separate Ewe state, an idea that Kwame Nkrumah, leader of the Gold Coast independence movement, opposed.

During the 1980s, calls for greater independence from Moscow's rule grew louder.

During the first half of the 20th century, a nationwide struggle for independence was launched by the Indian National Congress and later joined by the Muslim League.

During tenure as a member of the Congress, Middleton was not a supporter of immediate independence from Great Britain, himself remaining loyal to the crown.

During the Second World War, Finland fought twice against the Soviet Union and defended its independence, though in the process it in the 1947 peace settlement ended up ceding a large part of Karelia and some other areas to the Soviet Union.

During the 17th century, the basic tenets of the Grotian or eclectic school, especially the doctrines of legal equality, territorial sovereignty, and independence of states, became the fundamental principles of the European political and legal system and were enshrined in the 1648 Peace of Westphalia.

During the First Indochina War, the Indochinese Communist Party formed the Pathet Lao resistance organization committed to Lao independence.

During the 1950s, pressure for independence increased when Nyasaland was joined with Northern and Southern Rhodesia in 1953 to form the Federation of Rhodesia and Nyasaland.

During the first two decades of independence, Mali received major technical and financial support from the former Soviet Union, China, and their allies, especially in the area of radio and television broadcasting.

During this time there was unrest in the towns of Menton and Roquebrune, which declared independence, hoping for annexation by Sardinia and participation in the Italian Risorgimento.

During the war, the Bolsheviks struggled for survival, and Vladimir Lenin had no option except to recognize the independence of Finland, Estonia, Latvia, Lithuania and Poland.

During the 1990s the army ’ s main role was internal security and counter-insurgency operations in Bougainville, where a secessionist movement was attempting to bring independence.

During his reign, Boniface IX finally extinguished the troublesome independence of the commune of Rome and established temporal control, though it required fortifying not only the Castel Sant ' Angelo, but the very bridges, and for long seasons he was forced to live in more peaceful surroundings at Assisi or Perugia.

During this period, many governors of large cities distant from the capital ( Córdoba ) planned to establish their independence.

During the interwar period of Poland's independence, the first Legislative Sejm of 1919, a Constituent Assembly, passed the Small Constitution of 1919, which introduced a parliamentary-republic system and proclaimed the principle of the Sejm ’ s sovereignty.

During the 1950s, when the independence of Ghana was in sight, demands grew for a separate Ewe state, an idea that Kwame Nkrumah, leader of the Gold Coast independence movement, opposed.

During the 8th century, as the hegemony of Mercia grew, the kings of Wessex were largely able to maintain their independence.

During the next decade, it actively supported movements such as the National Union for the Total Independence of Angola ( UNITA ) under the independence war and under the subsequent civil war, the Zimbabwe African People's Union ( ZAPU ) and in Southern Rhodesia, the African National Congress ( ANC ) in their struggle against apartheid in South African Republic, and the South-West Africa People's Organization ( SWAPO ) in their struggle for independence for Namibia.