Placing the earliest first, arrange the following countries in the chronological order in which they granted universal adult franchise: 1. USA 2. Sri Lanka 3. Japan 4. India

The chronological order of granting universal adult franchise is as follows:

• Sri Lanka (1931): Introduced universal adult suffrage under the Donoughmore Constitution.
• Japan (1945): Granted universal suffrage to both men and women after World War II.
• India (1950): Enshrined universal adult franchise in its Constitution, giving voting rights to all adults regardless of caste, sex, or wealth.
• USA (1965): While women gained the right to vote in 1920, true universal adult franchise was achieved only with the Voting Rights Act of 1965, which removed discriminatory barriers against African Americans and minorities.

Therefore, the correct sequence is 2, 3, 4, 1.