Salad Olivier was named for a French chef Lucien Olivier, but this is not his original recipe (it was lost). Soviet cooks simplified the similar recipe and now this is the most popular salad for a exUSSR holiday tables. Variation with chicken meat is called Stolichniy Salad (Capital Salad). Some add onion, fresh cucumber and sour apples, some put on top shrimps or crab leg. Even carrot is latest edition for this plain winter salad.
Here are some rules: number of potatoes equal number of eaters, never mix hot and cold foods.