The first devices used for measuring the position of the Sun were shadow clocks, which later developed into the sundial. ... 3500 BC, are among the earliest shadow clocks. The oldest of all known sundials dates back to c. 1500 BC (during the 19th Dynasty), and was discovered in the Valley of the Kings in 2013.
Provide reasoning is the next best thing to do if the person is writing and argumentative prompt.
Two types of Figures of Speech are Metaphor & Simile
The word <em>whom </em>in this sentence is used as 2. object of a preposition.
Since it can be found after a preposition <em>for, </em>it is object of a preposition.