Which descriptions of the maya's civilization are true?
choose all answers that are correct.
a. built a high mountain city, probably as a retreat for nobility.
b. had cities with populations in the thousand
c. predicted eclipses and developed a 365-day calendar
d. made human sacrifices to appease the gods

in his book, the riddle of the rosetta stone, james giblin talks about how there was a young british polymath and physician named thomas young who made a lot of advances on the deciphering of the rosetta stone. he says that even though young made a lot of mistakes because he was working under false assumptions, he also made huge contributions like deciphering three out of the seven symbols (more than anyone else before him). young published his findings and continued his good work but he wasn't able to progress much further due to some unfavorable situations, he still laid the basis for many other scholars and of course for the man who has been generally known to have deciphered it, jean-françois champollion

"the attempts of the proletariat to rise above this abasement"