Iran – New World Encyclopedia
From New World Encyclopedia
Islamic Republic of Iran
Iran (, rn), officially the Islamic Republic of Iran ( , transliteration: Jomhr-ye Eslm-ye rn), and formerly known as "Persia" in the West, is one of the world's oldest continuous major civilizations, and is one of the few states that comprise the Cradle of Humanity.
The history of Iran covers over four thousand years. Throughout history, it has been of great strategic importance because of its central location in Eurasia. Iran is significant in international politics due to its large supply of petroleum as well as its influence in the Middle East region.
Cyrus the Great and Zoroastrianism, both of which originated in this land, along with the flowering of thought in ninth-century Persia, each had a decisive impact on the progress of human history.
The ancient nation of Iran was known to the West as Persia, due to the ancient Greek language name for Iran, Persis. The name Persia is used to describe the nation of Iran, its people, or its ancient empire. The Persians have called their country Iran/Iranshahr since the Sassanian period, which started in 224 C.E.
The name Persia comes from a region in the south of Iran, called Fars or Pars in the Persian language. This region was the core of the original Persian Empire.
Westerners referred to the state as Persia until March 21, 1935, when Reza Shah Pahlavi formally asked the international community to call the country by its native name, Iran, which means Land of the Aryans. Because of some Persian scholars' protests the government announced in 1959 that both Persia and Iran could be used.
In 2007, the official name of the nation was the Islamic Republic of Iran, but the noun Persia and the adjective Persian are still used.
Iran is the seventeenth-largest country in the world. Its area roughly equals the size of the United Kingdom, France, Spain, and Germany combined. Iran's area is approximately 636,300 square miles (1,648,000 square kilometers), of which 631,663 square miles (1,636,000 square kilometers) is land, and approximately 4,633 square miles (12,000 square kilometers) is water.
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Iran - New World Encyclopedia
- The U.S. Start-Up Making Low-Cost Interceptors for the Iran War - The New York Times - August 23rd, 2026 [August 23rd, 2026]
- Indian shares likely to open higher; caution ahead of new Iran sanctions - Reuters - August 23rd, 2026 [August 23rd, 2026]
- Oil prices slip over $1 as US weighs D-Day Iran sanctions; Strait of Hormuz shipping risks in focus - The Times of India - August 23rd, 2026 [August 23rd, 2026]
- US-Iran war latest: Bessent promises economic D-Day ahead of expected sanctions - CNN - August 23rd, 2026 [August 23rd, 2026]
- Iran war live: Tehran warns of earthquake-like retaliation over Trumps threats - The Independent - August 23rd, 2026 [August 23rd, 2026]
- Iran official says support for new sanctions would be an 'act of war,' and other Middle East news - AP News - August 23rd, 2026 [August 23rd, 2026]
- China Actively Committed to Iran Talks With Tensions Rising - Bloomberg.com - August 23rd, 2026 [August 23rd, 2026]
- Iran faces massive new triple-threat as Hormuz begins to open, cash gets tight and pols call to end the war - New York Post - August 23rd, 2026 [August 23rd, 2026]
- Iran war could last deep into 2027 as the Strait of Hormuz isn't that closed, allowing more oil out - Fortune - August 23rd, 2026 [August 23rd, 2026]
- After Six Months of War, Trump Is Still Losing to Iran - The New Yorker - August 23rd, 2026 [August 23rd, 2026]
- Iran threatens military response to US sanctions - Reuters - August 23rd, 2026 [August 23rd, 2026]
- Iran Warns Gulf States Not to Join Trumps Economic War - The New York Times - August 23rd, 2026 [August 23rd, 2026]
- Iran says new sanctions threatened by 'desperate' US will fail - Reuters - August 23rd, 2026 [August 23rd, 2026]
- Iran official says support for new sanctions would be an act of war - Politico - August 23rd, 2026 [August 23rd, 2026]
- Ahead of tough new U.S. sanctions, Iran criticizes 'extraterritorial sovereignty' - CNBC - August 23rd, 2026 [August 23rd, 2026]
- Mike Pence warns Trump hell have to go in and finish the job in Iran - Yahoo - August 23rd, 2026 [August 23rd, 2026]
- Iran official says support for new sanctions would be an 'act of war,' and other Middle East news - ABC News - Breaking News, Latest News and Videos - August 23rd, 2026 [August 23rd, 2026]
- Iran security chief threatens neighbors against economic measures, and other Mideast developments - AP News - August 23rd, 2026 [August 23rd, 2026]
- Pence: US must prepare for inevitable action against Iran - The Hill - August 23rd, 2026 [August 23rd, 2026]
- White House promises full-throttle economic warfare against Iran with new plan for sanctions - CBS News - August 23rd, 2026 [August 23rd, 2026]
- Iran official says support for new sanctions would be an 'act of war,' and other Middle East news - Yahoo - August 23rd, 2026 [August 23rd, 2026]
- Trump is winning the Iran war stay the course - New York Post - August 23rd, 2026 [August 23rd, 2026]
- Trump warns of economic D-Day against Iran, but Tehran is well acquainted with sanctions - AP News - August 23rd, 2026 [August 23rd, 2026]
- Mike Pence warns Trump hell have to go in and finish the job in Iran - The Independent - August 23rd, 2026 [August 23rd, 2026]
- Ampol profit surges nearly five-fold as Iran war boosts refining margins - Reuters - August 23rd, 2026 [August 23rd, 2026]
- Voices from the Arab Press: Economically strangling Iran vs falling into a trap - The Jerusalem Post - August 23rd, 2026 [August 23rd, 2026]
- Iran touts talks on regional alliances as US prepares to announce new sanctions - Fox News - August 23rd, 2026 [August 23rd, 2026]
- US vows economic D-Day as Iran threatens to halt all oil exports By Reuters - Investing.com - August 23rd, 2026 [August 23rd, 2026]
- Aug. 23: Wildfires force evacuations, U.S. economic battles against Iran and Canada - NBC News - August 23rd, 2026 [August 23rd, 2026]
- See How China Weathered the Iran Oil Shock - WSJ - August 23rd, 2026 [August 23rd, 2026]
- Graham called yearslong push for war with Iran the best thing Ive ever done in new footage - CNN - July 26th, 2026 [July 26th, 2026]
- Unreleased Documentary Footage Captures Grahams Obsessive Push for Iran War - WSJ - July 26th, 2026 [July 26th, 2026]
- Netanyahu: Iran conflict ends when regime falls or gives up its nuclear program - The Times of Israel - July 26th, 2026 [July 26th, 2026]
- Netanyahu reined in Lindsey Grahams obsessive push to widen Iran war, footage shows - Ynetnews - July 26th, 2026 [July 26th, 2026]
- US strikes 'on a hold,' as talks, battle for Strait of Hormuz control loom with Iran - Fox News - July 26th, 2026 [July 26th, 2026]
- Live updates: Iran operations on a hold after almost two weeks of consecutive US strikes, source says - CNN - July 26th, 2026 [July 26th, 2026]
- Will America launch another massive attack on Iran? - The Economist - July 26th, 2026 [July 26th, 2026]
- US pauses attacks on Iran for a second day as peace talks continue - The Guardian - July 26th, 2026 [July 26th, 2026]
- Trump's Aides Reveal New Levels of Erratic Behavior Over Iran War - The Daily Beast - July 26th, 2026 [July 26th, 2026]
- US, Iran Extend Pause in Strikes as Oman Holds New Hormuz Talks - Bloomberg.com - July 26th, 2026 [July 26th, 2026]
- Iran war latest: 'They would use it if they had it' - Trump insists Iran cannot have a nuclear weapon - Sky News - July 26th, 2026 [July 26th, 2026]
- Iran threatens to expand war if US resumes strikes, which it says Israel is pushing for - The Times of Israel - July 26th, 2026 [July 26th, 2026]
- What to know about Iran's Pickaxe Mountain, home to an underground nuclear site threatened by Trump - AP News - July 26th, 2026 [July 26th, 2026]
- Vance, Caine raised concerns about escalating war in Iran, sources say as US pauses consecutive nights of strikes - CNN - July 26th, 2026 [July 26th, 2026]
- US pauses attacks on Iran for a second straight day and Tehran does too - Orange County Register - July 26th, 2026 [July 26th, 2026]
- Katy Perry deeply appalled over White House using her song in Iran war video - The Guardian - July 26th, 2026 [July 26th, 2026]
- It Isnt Just Pickaxe: Trumps Other Potential Nuclear Targets in Iran - WSJ - July 26th, 2026 [July 26th, 2026]
- Iran Journey Reveals Societys Wartime Defiance and Hope - The New York Times - July 26th, 2026 [July 26th, 2026]
- CBS News poll finds Iran conflict marked by feelings of uncertainty; most say it's more difficult than Trump had expected - CBS News - July 26th, 2026 [July 26th, 2026]
- Military Families Express Outrage After Pentagon Lowers Number of U.S. Troop Deaths in Iran War - The New York Times - July 26th, 2026 [July 26th, 2026]
- Ukraine war briefing: Iran accuses Kyiv of deadly attack on Iranian vessel in Caspian Sea - The Guardian - July 26th, 2026 [July 26th, 2026]
- Iran war spreads to Red Sea and Caspian, Gulf quiet as US forgoes strikes - Reuters - July 26th, 2026 [July 26th, 2026]
- Airstrikes have paused and talks are pressing forward. But can the US and Iran take the off-ramp? - AP News - July 26th, 2026 [July 26th, 2026]
- The U.S. and Iran pause attacks on each other for a 2nd day as Tehran talks with Oman over Hormuz - Fortune - July 26th, 2026 [July 26th, 2026]
- Iran reports first night without new US strikes as Houthis attack Saudi Arabian city - Fox News - July 26th, 2026 [July 26th, 2026]
- U.S. and Iran pause air strikes as talks show signs of progress - The Globe and Mail - July 26th, 2026 [July 26th, 2026]
- Opinion | I was a diplomat in Iran. Two rules explain its actions. - The Washington Post - July 26th, 2026 [July 26th, 2026]
- Trump is giving Iran talks 'a little bit of room,' US ambassador to UN says - Reuters - July 26th, 2026 [July 26th, 2026]
- How Russia helped build Iran into a strategic partner against the West - analysis - The Jerusalem Post - July 26th, 2026 [July 26th, 2026]
- U.S. forgoes strikes on Iran, but conflict escalates in the Red Sea - NBC News - July 26th, 2026 [July 26th, 2026]
- US has spent $37.5B on Iran war, Hegseth says at heated Senate hearing - USA Today - July 21st, 2026 [July 21st, 2026]
- Israel remains on sidelines of US-Iran fight, which for Jerusalem is just fine for now - The Times of Israel - July 21st, 2026 [July 21st, 2026]
- Secretary Hegseth grilled over growing cost of war with Iran - NBC News - July 21st, 2026 [July 21st, 2026]
- Trump Has Only Terrible Choices With Iran - The Atlantic - July 21st, 2026 [July 21st, 2026]
- Hegseth asks for billions for the Iran war, is there an end game? - NPR - July 21st, 2026 [July 21st, 2026]
- Secretary Hegseth testifies on Capitol Hill as Iran conflict costs rise to $37.5 billion - KCRA - July 21st, 2026 [July 21st, 2026]
- Opinion | The U.S. military's escalating strikes in Iran may be legal. That doesnt make them justified. - MS NOW - July 21st, 2026 [July 21st, 2026]
- Secretary Hegseth testifies on Capitol Hill as Iran conflict costs rise to $37.5 billion - WBAL-TV - July 21st, 2026 [July 21st, 2026]
- Secretary Hegseth testifies on Capitol Hill as Iran conflict costs rise to $37.5 billion - WYFF - July 21st, 2026 [July 21st, 2026]
- Trump says will be hitting Iran's Pickaxe Mountain nuclear complex 'pretty soon' - France 24 - July 21st, 2026 [July 21st, 2026]
- Secretary Hegseth testifies on Capitol Hill as Iran conflict costs rise to $37.5 billion - WESH - July 21st, 2026 [July 21st, 2026]
- Secretary Hegseth testifies on Capitol Hill as Iran conflict costs rise to $37.5 billion - WDSU - July 21st, 2026 [July 21st, 2026]
- Secretary Hegseth testifies on Capitol Hill as Iran conflict costs rise to $37.5 billion - KETV - July 21st, 2026 [July 21st, 2026]
- Pentagon Identifies Another Soldier Killed in Iran War - The New York Times - July 21st, 2026 [July 21st, 2026]
- Secretary Hegseth testifies on Capitol Hill as Iran conflict costs rise to $37.5 billion - KSBW - July 21st, 2026 [July 21st, 2026]
- The Iran wars big oil mystery: No one seems to want it - CNN - July 21st, 2026 [July 21st, 2026]
- Second critical waterway threatened by Iran war - CNN - July 21st, 2026 [July 21st, 2026]
- Iran is evading U.S. defenses to kill and wound American soldiers it's not just that "one leaked through" - CBS News - July 21st, 2026 [July 21st, 2026]
- July 20, 2026 US completes more strikes against Iran after Trump warning to Tehran - CNN - July 21st, 2026 [July 21st, 2026]
- Pentagon Withheld Dozens of U.S. Military Injuries in Iran War - The New York Times - July 21st, 2026 [July 21st, 2026]