During the song dynasty, china was one of the most developed countries in the world. what features of that dynasty provide evidence supporting that judgment?

The Song dynasty lasted from 960 AD until 1279 AD in China. It was a period of enormous development, progress and population growth in Chinese history. Its advancements in technology, art, philosophy, science and economy made China one of the most developed countries in the world at the time, as can be seen from the dynasty’s list of accomplishments:

the lachish letters were written by hoshaiah, a military officer stationed possibly in mareshah,   and sent to yaush, possibly the commanding officer at lachish.

the series of letters were written in carbon ink in ancient hebrew on clay ostraca, shortly before lachish fell to the babylonian army of king nebuchadnezzar in 588/6 bc during the reign of zedekiah, king of judah.

d) john quincy adams was such a popular president that andrew jackson lost despite running a strong campaign.

hope this