
Can't Get No Cachefaction 
With apologies to the Rolling Stones
Please allow me to introduce myself,
Known for my age and fame.
Been around for a long long years
Hope you can guess my name.
I smiled upon young Rabbie's birth
Grieved as Edward 7th, left the earth
Saw two Popes, both claim they rule
And Colt inventing his deadly tool
Pleased to meet you, hope you guess my name
Ah, but what's puzzling you
Is the nature of my game.
When Harold fell, and William claimed his crown,
I watched it all but didn't stick around.
Saw Hungary's Kingdom's hopes all fade,
When the Turks rolled in, and took Belgrade
Sima Qian, he chronicled me,
an historian grand, who wrote The Shiji.
Attila's loss at Chalons plain
Nuclear disaster, in The Ukraine
Pleased to meet you, hope you guess my name
Ah, but what's puzzling you
Is the nature of my game.
You may see me once,
But never again.
Pleased to meet you,
Hope you guess my name
___________________________________________
When you think you know the answer, enter the first 4 letters of the first word and the first 4 letters of the second word, together into the checker using the following format: LETTCACH
Solution Checker

You can validate your puzzle solution with certitude.
/>