Actually it's closer to French dressing - Russian dressing has a bit of horseradish and hot-sauce. For Thousand Island dressing, mix in some sweet pickle relish.
Russian dressing was concocted in New Hampshire in 1910, according to wikipedia.
In Russia it is now known as “ketchunez”.
I mix up the best of 1,000 Is. & Russian: ketchup, mayo, horseradish, relish, bacon bits, & hot sauce.
Spooned over a quarter head iceberg lettuce & eaten standing up while leaning over the kitchen sink JUST KIDDING!!!
;^)