An author’s imagination is their most powerful asset, but great stories rarely spring from imagination alone. Even the most creative fiction writing tends to be rooted in some degree of real world events, and to accurately capture those real world events, an author must conduct research for their story. Whether you’re working on your first novel or your fiftieth, you’ll lean heavily upon your research once you start writing.
— Read on www.masterclass.com/articles/how-to-research-a-novel