Why did the Sassanid have the capital at Ctesiphon, not Iran?

Very simply, the core of the ancient Persian Empire has always been the two rivers, not the Iranian plateau, the population of the two river basins, the agriculture is developed, located in the transit of the Silk Road, Persia is supported by the taxes of the two rivers, although the Great Khorasan region is an important Persian soldier but too poor, until the beginning of the Seljuk Empire, the Iranian plateau began to be initially developed.

Taixi, in the old days, generally refers to Western countries, generally referring to European and American countries. Qing Fang Yizhi "East and West, So": "Taixi's push has a poor atmosphere, this summer will see the river Han, and the winter will be harvested, and the air will be turbid."

Qing Zhaolian's "Xiaoting Miscellaneous Records: Good Astronomical Algorithms": "Since the middle of the Ming Dynasty, the Taixi people entered China, and algorithms and astronomy are proficient in Middle-earth. "Qing Huang Zunxian's "August 15th Night in the Pacific Ocean Boat Looking at the Moon and Singing":

The world shares this month, and the world does not share the Mid-Autumn Festival. The Taixi Chronicle is 2,000 years old, and it is only an ordinary number of rounds. Qu Qiubai's "Chronicles of the Hungry Country" nine:

But I regret that I didn't have a few more years of social education in the ancient culture of the East, and then went to 'Taixi'. ”

You can see the latter as the inheritance of the former, just as the Tang dynasty inherited the Han dynasty.

Because both were Persian empires, and the former was called the Achaemenid dynasty and the latter was called the Sassanid dynasty. The main ethnic groups and cultures of both are Iranians and Iranian cultures.

The Alexander Empire and the Seleucid Empire, on the other hand, belong to the history of foreign conquest dynasties and foreign conquests of the Iranian region.

The continued weakening of the Qajar dynasty was eventually overthrown by the military-born Reza Khan, who established the Pahlavi dynasty. At its peak, the Pahlavi dynasty achieved gratifying results in modernization. But this superficial prosperity did not hide the corruption within it, and eventually led to the outbreak of the Islamic Revolution!

The capital of the Persian Empire was Daisiphon, which is present-day Baghdad.

The Sabbath and the Persian State are not one nation. The differences are as follows:

1. The national system and geographical location are different.

The state of Persia was a monarchical empire centered on the ancient Persians in the Iranian Plateau region of Western Asia. The Sabbatical Kingdom was a slave kingdom of the Classical period in the Iranian plateau region of western Asia.

2. The time is different.

The Persian state began in 550 BC when Cyrus the Great founded the Achaemenid dynasty, and in 334 BC, Alexander the Great of the Macedonian kingdom marched eastward to defeat Darius III, and the Persian state was destroyed.

The Sabbath was founded in 247 BC by the founding monarch of Alsace. It was replaced by the Sassanid dynasty of Persia in 226 AD.

The Sabbath is the Parthian Empire in Western history books. It is an ancient slave kingdom of Iran, founded in 247 BC, the founding monarch is Arsace, and the Western Han Dynasty takes its founder Arsacids Chinese transliteration "rest" as the name of the country. It was replaced by the Sassanid dynasty of Persia in 226 AD.

The Persian Empire is a monarchical empire centered on the ancient Persians in the Iranian Plateau region of West Asia, which began in 550 BC when Cyrus the Great founded the Achaemenid Dynasty, and in its heyday the territory stretched from the Indus Plain and the Pamir Plateau in the east, to Egypt and Libya in the south, to Asia Minor and the Balkan Peninsula in the west, and to the Caucasus Mountains and the Aral Sea in the north. Persia arose in the southwestern part of the Iranian plateau. Since 600 BC, the Greeks have called this region "Persia".

In 334 BC, Alexander the Great of the Macedonian kingdom defeated Darius III and the Persian Empire fell.

As a result, the two empires existed in the territory of present-day Iran, and the Persians belonged to the Indo-European language family, which moved from Central Asia to the southwestern part of the Iranian plateau (Fars region) in the late 2000s BC, and was once under Median rule. And the Parthians belonged to a branch of the White Huns, not a race.

The King of the Kingdom of Rest came to China and said to the Emperor of the Han Dynasty: "Your Majesty, thank you for your strong support for the Kingdom of Peace over the past few years. With your help, our country of rest is now a prosperous country.!?

This is going to be done by looking up the historical data

Parthian Empire (Persian: emper turi ashk ni n; 247-224 BC) also known as the Asasis dynasty or the Sabbatical Empire.

What is now Iran, by and large, is the bulk of it.