I think that ther warmed the water on something and then puted it on the bath.
In the olden days, people measured temperature using instruments like thermometers filled with mercury or alcohol. These thermometers relied on the expansion and contraction of the liquid to indicate temperature changes. Other methods included using simple devices like a thermoscope or relying on behavioral changes in animals or nature to gauge temperature.
by eating warm meat
Keeping people warm in cold winter days and/or attracting fleas to keep off people. (Fleas are attracted to warmth.)
Lots of layers help keep bodies warm, and minimizing the time out of doors.
they were invented to keep people warm
sex
In all probability, when these fibres were made into clothing designed to keep bodies warm: yes.
to keep them self's warm and
Fire and clothing.
people can keep warm by having a cup of coco,having a bath and putting on a hat,a scarf and a pare of gloves
People in the olden days forecasted weather conditions by observing natural signs such as cloud formations, wind direction, animal behavior, and changes in temperature or humidity. They also relied on folklore, such as the appearance of certain plants or insects, to predict weather patterns.