Sogdian Rock happened in -327.

Aleksandr Naymark has written:

'Sogdiana, its Christians and Byzantium' -- subject(s): Art, Sogdian, Christian art and symbolism, Civilization, Sogdian Art, Sogdians

They spoke alot of English

forget him they spoke no English it wasn't invented you idiot. they spoke mongolian, tibetan, mandarin, ugar, Hindi purdu and more

Cuitty Azarpay is an expert on ancient Iranian languages and has written extensively on topics related to the ancient scripts and languages of Iran, particularly on the topic of the Sogdian language and script.

Various languages were spoken along the Silk Road due to the diverse cultures and trading routes. Common languages included Chinese, Persian, Arabic, and later on, Turkish. Traders and travelers often used a combination of languages or relied on interpreters to communicate effectively.