On this day in 1998, India conducted its first underground nuclear tests after 24 years back in 1974 when India joined the list of countries with Nuclear Arms. The tests were in violation of a global ban on nuclear testing.

In 1573, Henry of Anjou became the first elected king of Poland.

In 1792, The Columbia River was discovered by Captain Robert Gray.

In 1858, Minnesota became the 32nd state in the United States.

In 1949, Siam changed its name to Thailand.

In 1956, The Gold Coast (Ghana) became the first black African nation to be granted independence from Britain.

In 1998, A French mint produced the first coins of Europe's single currency. The coin is known as the euro.