Around 400 years ago, people ate many of the same things as today including chicken, pasta, and soups. They often contained fewer and less variety in the ingredients.
bbq
Yes, kimchi was eaten 100 years ago.
Rice.
Probably some nomadic people, some 19,000 years ago.
this happened many years ago when they were starving, it is not happening today
Just maccas now and then, but only if they were good and did their chores.
Life 50 years ago was much simpler. People worked and spent time with their family. Going out to eat was a special occasion. People socialized with friends and family in their homes.
By "they" I think you mean "people". Yes, but a lot less nowadays than 50 years ago.
Thy have to hunt and then thy hve to cook so that they could eat,
No. They do not. Years ago, the indigenous people of Australia did eat koalas, but there are virtually no tribes living their traditional lifestyle any more.
You would preserve it in coarse salt if it were meat and in ice if it were fruit or vegetables.
Cows have not changed through the years they still eat the same things; vegetation and grains.