· Around the 6th century B.C., the Aryans entered the Bengal region downstream of the Ganges River, where Bangladesh is now located, and formed Bengal people with the residents of Dravida.
· B.C. was ruled by the Indian continental dynasty after the mid-5th century, and Buddhist culture was flourished after the Pala dynasty in the mid-8th century.
· The development of Islamic culture as the Bengal region has been under the influence of Islamic power since the 13th century
· Since the Mughal Empire conquered the Bengal region in 1576 and began to rule, it has been prosperous as a center of trade.

· Britain was incorporated into the British colony in 1757, as it secured exclusive control over all of India, including the Bengal region.
· In 1905, Britain announced that it would separate the Hindu-majority West Bengal region and the Muslim-majority East Bengal region (currently Bangladesh) to divide the forces.
Revoking the Partition of the Dong in 1911 due to opposition from residents

· August 14, 1947, East Bengal (now Bangladesh) was independent as one of Pakistan's 11 states (East Pakistan) because of their religious commonalities despite their different races and languages.
· After independence, the separation movement of East Pakistan continued due to political, economic and social discrimination policies and the existence of heterogeneous elements, and the anti-government protests were held with the Bengal movement in force.
· In 1970.12 the Awami League, which had advocated the independence of East Pakistan, won 160 out of 300 seats (160 out of 62 seats in East Pakistan) in the general election.
The Pakistani government postponed the opening of the National Assembly indefinitely.
· 3rd, 26th, 1971, Declaration of Independence and the outbreak of civil war, victory in the 12.16th War, and independence of Bangladesh.

※ Bangladesh War of Independence in 1971
· March 26 Sheikh Mujibur Rahman (head of the Aagami Federation) Declaration of Bangladesh's Independence
· Pakistani military searchlight operations have killed an estimated 3 million Bangladeshis across Bangladesh, resulted in 300,000 domestic refugees and about 100,000 refugees entering India.
· Establishment of the Provisional Government of Bangladesh in April and the civil war between the Bangladesh Independence Army and the Pakistan Occupation Force supported by India
· Since June, Bangladesh's independent forces have launched guerrilla warfare around the border with India.
· In accordance with the Dec. 3 decision, troops will be deployed to support Bangladesh (the Third Indo-Pakistan War)
· West Pakistan suffered a crushing defeat after a two-week war with India.
· Bangladesh independence with Pakistan signing the surrender document on December 16

A. Early Government Since Independence
· 1, 12, 1972, Sheikh Mujibur Rahman of the Awami League took power as prime minister of the cabinet system and declared a socialist economy and a non-aligned neutral line.
· 1975. Although the amendment of the presidential system and the one-party dictatorship of the Workers' and Farmers' Awami League (BAKSAL) were carried out in January, 8.15. The military coup killed President Rahman.
· Army Chief of Staff Ziaur Rahman came to power under martial law and took office as president in April 1977.
· 1978. In September, President Rahman founded the Bangladesh Nationalist Party (BNP) and won the February general elections in 1979.
· 1981 Sheikh Hasina, the eldest daughter of Sheikh Mujibur Rahman, returned from exile abroad and took office as head of the Awami Federation in March, strengthening the fight against the government.

B. Coups and military regimes
· 5/30. The murder of President Ziaur Rahman in a military coup, and then, in the November 15 presidential election, Acting President Abdus Sattar was elected president.
· 3rd, 24th, 1982, Army Chief of Staff Hussain Muhammad Ershad seized power as commander of martial law and dissolved parliament after a coup.
·1983. 12. Ershad the President of the Martial Law Command, 1986.1 The People's Party (Jatiya Party) was founded, re-elected in the October presidential election of the same year, and the lifting of martial law on November 10.
· 1987 The Nationalist Party of Bangladesh (BNP) and the Awami League declared a state of emergency across the country and dissolved parliament as fighting intensified in December.
· Following the spread of the nationwide campaign to oust the government in 1990, President Ershad resigned and established the first interim government.

C. Return to Parliamentary Democracy
(1) the first term of Prime Minister Kalda Zia (1991-1996)
· 1991 The Bangladesh Nationalist Party won the February general elections to launch a new Khaleda Zia (the widow of President Ziaur Rahman) government, and then to amend the cabinet responsibility system in September.
Abdour Rahman Biswas inaugurated as President in October
· 1994. 147 opposition lawmakers, including the Awami Federation and the People's Party, resigned from their posts, boycotted elections, and launched a general strike to oust the government over alleged manipulation of the ruling party by-election in December.
· 2. 15. 1996 A general election was held in the absence of the Awami League and others to win the Bangladesh Nationalist Party and re-election as Prime Minister of Zia.
· 3. 26, 1996 As the Congress carried out a constitutional amendment to carry out general elections under neutral interim government, the Zia government resigned and the formation of a second interim government.

(2) Sheikh Hasina's first term in office (1996-2001)
· June 12, 1996 As a result of the general election, the Awami League won a majority of seats, it was the first time in 21 years that Sheik Hasina, the leader of the Awami League, took office as prime minister.

(3) The Second Term of Kalda Zia (2001?06)
· 7th, 2001. The resignation of the Hasina government and the formation of a third interim government to carry out the general elections, the change of government by winning a majority of the Nationalist Party in October of the same year, and the re-election of Prime Minister Zia (the leader of the Nationalist Party).
· October 29, 2006 The resignation of the Zia government and the formation of the fourth interim government Iajuddin Ahmed, the president of the interim government, concurrently serves as the head of the interim government.
· January 11, 2007 Declaration of Military Emergency and the inauguration of Fakhuddin Ahmed as interim head of the government

(4) After the second term of office of Prime Minister Sheikh Hasina (2008)
· December 29, 2008 General Elections and a landslide victory in the Awami League, and the re-election of Prime Minister Hasina in January of the following year
· June 30, 2011. The Hasina government will carry out a constitutional amendment, including the abolition of the neutral interim government during the general elections and the designation of the first president of Sheik Mujibur Rahman as a national territory.
· 2013 Opposition Union boycott against general elections, blockage of roads, railroads, and waterways (commercial roads) and launch general strikes
· 1.5, 2014, held general elections without Bangladesh Nationalist Party and opposition coalition, and re-elected Prime Minister Hasina
· To mark the first anniversary of the boycott of the general elections from January to April 2015, the opposition party's non-stop blockades (blockade of roads, railroads, and waterways) continued for several months.
· 12.30. 2018, with the participation of the opposition coalition, the Awami League won a landslide victory, and Prime Minister Hasina won a total of four terms.