Bangladesh... you're welcome
Bangladesh
In 1971, Pakistan attacked Bangladesh (Former East Pakistan). Later India came to help the Bangladeshis to defeat the Pakistan and gain independence.
Pakistan got split in 1971 and a new country with the name "Bangladesh" came into being which was formerly known as Eastern Pakistan.
In 1947, India split in to 2 parts, Pakistan (For Muslims) and India (For Hindus). In the partition, East and West Pakistan were separated by 870 miles. West Pakistan was much stronger politically than the Eastern Wing, so this lead to political and economic neglect, ethnic discrimination, and civil disobedience. In 1971, they split after the Bangladesh Liberation War to form Bangledesh
Bengladesh is new name of one East Pakistan .
Bangladesh is the Bengali native country formerly known as East Pakistan, which was established by the partition of India into Hindu and Muslim states in 1947. Popular uprisings led to armed conflict and a declaration of independence from West Pakistan on March 26, 1971. Autonomous rule was established by the victory of India in the Indo-Pakistani War of 1971, which concluded on December 16, 1971.
East Pakistan chose the name Bangladesh, which means "Land of Bengal," to emphasize its cultural and linguistic identity, distinct from West Pakistan. The name symbolized the region's struggle for autonomy and self-determination, especially after the 1971 liberation war. It reflected the desire to assert a national identity rooted in Bengali heritage, language, and history. Ultimately, the name change marked the establishment of an independent nation following years of political and cultural marginalization.
East PakistanUntil it achieved independence in 1971, Bangladesh (aka People's Republic of Bangladesh) was East Pakistan, a large exclave of West Pakistan (now Pakistan) created by the 1947 partition of India into Hindu and Islamic countries.
Bangladesh
I don't know if this is what you are thinking but.... East Pakistan, and West Pakistan
Current name of east Pakistan is Bangladesh and the old name was Bangal.
The new name for East Pakistan is Bangladesh, with Dhaka as its capital.