July 20, 1974 was the day Turkish military attacked the nation of Cyprus, eventually gaining about a third of the island.
Fifty-four years earlier, also on July 20th (1920), Greece had been awarded the resort town of Silivri by the winners of WWI when they divvied up the Ottoman Empire in the various Paris peace conventions. Greece didn't actually have control because the Italian military had never left after the war, and the new Turkish military took it back in 1923.
That didn't stop Turkey from calling their invasion tit-for-tat, and with them as their backers, Cypriots of Turkish descent took over northern Cyprus and in 1983 declared it a new colony of Turkey; they've been calling for partition ever since. The only country that recognizes their cause as legitimate is Turkey.
Coverage of the 50th anniversary in the news has been very moving. More than 3,000 Greek Cypriots were killed in the invasion.
is a spot to start, but see many other online articles as well.
See also the general articles here:
https://en.wikipedia.org/wiki/Turkish_invasion_of_Cyprus
https://en.wikipedia.org/wiki/Cyprus
https://en.wikipedia.org/wiki/Silivri
It's very interesting how various International bodies and countries treat this occupation in comparison to others.
Also very interesting that many western Europeans are familiar with Cyprus as a getaway destination, while Americans, including those of us here on the Forum, don't seem very clued in to it.