What is an object made by humans that sheds light on the past?

An object made by humans that sheds light on the past is a historical artifact, such as an ancient pottery shard. These items provide insights into the daily lives, cultures, and technologies of previous civilizations. By studying their materials, designs, and usage, archaeologists and historians can piece together information about social structures, trade practices, and artistic expression of the time. Such artifacts serve as tangible connections to human history and heritage.