When were milkshakes invented?

Question

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Answer 1

1885, milkshakes were an alcoholic whiskey drink that has been described as a "sturdy, healthful eggnog type of drink, with eggs, whiskey, etc., served as a tonic as well as a treat.

Answer 2

this morning

Answer 3

When the term "milkshake" was first used in print in 1885, milkshakes were an alcoholic whiskey drink[7] that has been described as a "sturdy, healthful eggnog type of drink, with eggs, whiskey, etc., served as a tonic as well as a treat".[8] However, by 1900, the term referred to "wholesome drinks made with chocolate, strawberry, or vanilla syrups." By the "early 1900s people were asking for the new treat, often with ice cream." By the 1930s, milkshakes were a popular drink at malt shops, which were the "typical soda fountain of the period... used by students as a meeting place or hangout."

Answer 4

a while ago....why?