Who wrote 'Those Were the Days' sung by Mary Hopkin? It wasn't Gene Raskin, that comes from an inaccurate website.

The song was originally recorded by the Limeliters who adapted it from a 1920s Russian folk song called "Darogoi Dlimmoya" (Dear for Me).
-- Rolling Stone Encyclopedia of Rock and Roll (3rd Ed).

Mary Hopkin (not Hopkins) was born on May 3, 1950 in Pontardwe, South Wales. According to Rolling Stone Encyclopedia, the model Twiggy introduced Hopkin to McCartney. He signed her to the Apple label and wrote and produced her second single, "Goodbye". Although she recorded a few other songs, Hopkin is best remembered for those two - "Those Were the Days" and "Goodbye".

The following are excerpts from what appears to be a very well researched and documented site on the origins of the song "Those Were the Days" as recorded by Mary Hopkin. Gene Raskin is responsible for the lyrics, adapting the melody from a Russian folk song.

"The lyrics to the song that we have come to now know and love as 'Those Were the Days' were written by an American composer Gene Raskin in the early 1960's. The first known recording I am aware of was by the Limelighters in 1963. It has been covered by many artists since, Sandie Shaw (now whatever happened to her version) and more recently the Three Tenors did an incredible performance of the song."

"Gene is an old and very dear friend of my family. I have not only the sheet music, but the cover art signed by Gene himself. I would be happy to help in any way I can. Gene told me that he performed the song in cabaret when he and his wife Frances were young, and it was based on a classic Russian folk tune. Dick James brought the song to Paul for Mary Hopkin, and I happened to be there when he came to Abbey Road to give it to him." --Francie Schwartz

https://jilldennison.com/2020/03/20/?-those-were-the-days-?/

A well known song before Liam (Clancy) recorded it. First recorded in 1920 by Alexander Vertinsky then later by Mary Hopkins in 1968. Written by Gene Raskin. Also recorded by Paul McCartney. The sheet music is included.

http://www.irish-folk-songs.com/those-were-the-days-liam-clancy-lyrics-chords.html

If it was recorded in 1920, then it is unlikely Raskin wrote it, since he was only 11 years old in 1920.

https://en.wikipedia.org/wiki/Eugene_Raskin

It seems more likely that it was an old folk song that Raskin 'embellished'.

??????? ??????? ("Dorogoi dlinnoyu"), (The Endless Road) is not a folk song or tune, according to
https://en.wikipedia.org/wiki/Boris_Fomin and
https://en.wikipedia.org/wiki/Those_Were_the_Days_%28song%29

There again, all folk songs and tunes were composed (if not physically written down) by someone. They don't just appear out of nowhere. 'Traditional' means we don't know who started it (or messed around with it making a new version - I've been told a tune of mine to some Victorian words we pinched off someone else and forgot their tune to the which, has surfaced in America and the thing is now a folk song. I'm happy.)
Boris Fomin - more about:
http://www.languagehat.com/archives/002426.php