Which major accomplishments were achieved within the persian empire? choose all the correct answers.
a. created the first written laws
b. introduced architectural styles and farming techniques from other parts of the world
c. built a vast network of roads
d. encouraged religious tolerance

 • Introduced architectural styles and farming techniques from other parts of the world • Built a vast network of roads • Encouraged religious tolerance

Explanation:

Introduced architectural styles and farming techniques from other parts of the world: Persian architecture encompassed several different styles developed during the 200 years of the Achaemenid or First Empire, founded by Cyrus the Great in 550 BC, and throughout the overall Iranian thousand-year tradition. The acquired elements of the Egyptian and Roman art and architecture were hybridized over time so that the Persians (and then Iranians) eventually formed their own characteristic style. Achaemenid architectural styles included the use of available resources such as limestone, terraced constructions and intricate decorations in reliefs, which incorporated the styles and languages of their conquered peoples and depicted a wide range of themes, from different animals to all of their conquered peoples, each represented in their traditional attire. The agricultural irrigation system was famous in the Persian Empire. Emperors encouraged this development. It especially came to the fore in places where water was available. This irrigation system has advanced the development of many areas.Built a vast network of roads: Given that the Persian Empire was one of the greatest in human history, a massive road connection was built. The most famous is the Royal Road, organized and built by order of king Darius I “The Great” in the 5th century BCE which was almost 3000 kilometers long. This system of roads also passed through less populated and remote places. It was one of the most significant construction ventures of the time. Encouraged religious tolerance: Although the official religion of the Persian Empire since its origins was Zoroastrianism (the monotheistic worship of the one god, Ahura Mazda), tolerance was also one of its most defining characteristics. The Persians didn't force their conquered peoples to renounce their native religions, as long as they recognized Persian power, paid their taxes, etc. The Persians pursued this policy of religious freedoms to extend their influence and to justify the authority of the Persian ruler in the newly conquered territories without overly disrupting their overall functioning. This religious policy of the Persians was greeted with much sympathy in the places where they established their rule. Many rulers in other and neighboring countries were not so tolerant, and some people even sought freedom in the Persian empire.