Which photographic style shaped Edward Steichen’s early work?

Edward Steichen’s early work was shaped by the photographic style known as Pictorialism.

During his youth, Steichen sought to win public acceptance of photography as a fine art by emulating the mood, manner, and attitude of traditional paintings and prints. To achieve this, he utilized his training as a painter and frequently employed the gum-bichromate process in combination with platinum or iron-based emulsions. These techniques allowed him significant control over his images, resulting in photographs that bore a superficial resemblance to traditional media such as wash drawings and mezzotints.1