A historian
A person who studies flags is known as a vexillologist. Vexillology is the scientific study of flags, their history, symbolism, and design.
An archaeologist studies ancient artifacts, seeking to understand past human societies and cultures through the examination of material remains such as tools, pottery, and buildings.
What is the name of a person that studies organisms
A person who studies sand is known as a psammologist.
A person who studies sound is called an acoustician.
An entomologist is a person who studies insects.
A person who studies earth and stones is called a geologist. Geologists specialize in understanding the history, composition, and structure of the Earth's crust, including rocks, minerals, and geological processes.
What is the name of a person that studies derivation of
A person who studies audiology would be called an audiologist.
Many different professionals study bones. The most obvious one is an osteologist.
A Historian.
A horologist studies time.