Simply said yes. Persia and Iran are often used interchangeably to refer to the same geographical area in Eurasia. Although the West referred to the territory of Iran (and Greater Iran) as "Persia", the Iranians themselves have always referred to their land as "Iran" (which means "Land of the Aryans") as attested in Achaemenid and Sassanian inscriptions going back thousands of years. Persia, the Greco-Roman word for "Parsa", was a country in southwest Iran (now the province of "Fars") and home to the Iranian tribe the Persians. So, depending on the context, Persia can be synonymous with Iran or more precisely a province or country within Iran.
Yes, until 1935 Iran was called Persia.
Persia was one of many countries where the exonym (the name other people call a country) and the endonym (the name the citizens of that country call it) were different. A current example would be Germany. Germans have an endonym of Deutschland, but English speakers call it Germany, French speakers call it Allemagne, Polish speakers called it Niemcy, etc. The Persian endonym was Iran and in 1935, Shah Reza Pahlavi of Iran asked that all countries around the world use the term "Iran" in all future correspondence with the state (as opposed to the historic exonym Persia). It has stuck.
Persia is now called Iran
No, Persia is the country also known as Iran.
Iran in biblical times was known as Persia.
Persia is the old name of Iran
Persia was once called Iran
Iran.
Persia became known as modern day Iran.
Persia is not in the UK country. Persia is actually the old name for Iran. The people of Iran are known as Persians.
Persia became Iran.
The previous name of Iran was the QAJJAR KINGDOM OF PERSIA. The name of the country of Persia was changed to Iran in 1935 when Reza Shah Pahlavi overthrew the Qajjar Kingdom of Persia and created the Iranian Empire.
Persia is now known as Iran.
Persia and Iran are the same country. Iran used to be called Persia, but has changed its name to Iran in modern times. Although, people still call Iran, Persia occasionally. And the story 'Arabian Nights' is the Western World's name for the story 'One Thousand and One Nights' which does take place in Persia (present-day Iran).