2. In 1968, the areas labeled Estonian SSR, Belorussian SSR, and Moldavian SSR

referred to *

(1) republics that were part of the Soviet Union

Explanation:

The now defunct Soviet Union or Union of Soviet Socialist Republics (USSR) which is commonly and falsely referred to as just Russia comprised of 15 republics that were United under the Soviet banner.

The Estonian SSR, Belorussian SSR, and Moldavian SSR were some of those republics and indeed the 'SSR' you see in their names is an acronym for Soviet Socialist Republic i.e, Moldavian Soviet Socialist Republic.

where is the picture of the graph or table?

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