History Of Manga-After World War II (2):- Tezuka and Hasegawa were also both stylistic innovators. In Tezuka's "cinemato graphic" technique, the panels are like a motion picture that reveals details of action bordering on slow motion as well as rapid zooms from distance to close-up shots. More critically, Tezuka synchronised the placement of panel with the reader's viewing speed to simulate moving pictures. Hence in manga production as in film production, the person who decide the allocation of panels (Komawari) is credited as the author while most drawing are done by assistants. This kind of visual dynamism was widely adopted by later manga artists. Hasegawa's focus on daily life and on women's experience also came to characterize later shōjomanga. Between 1950 and 1969, increasingly large audiences for manga emerged in Japan with the solidification of its two main marketing genres, shōnen manga aimed at boys andshōjomanga aimed at girls. Up to 1969,shōjo manga was drawn primarily by adult men for young female readers. Two very popular and influential male-authored manga for girls from this period were Tezuka's 1953-1956 Ribon no Kishi ( Princess Knightor Knight in Ribbons) and Mitsuteru Yokoyama's 1966 Mahōtsukai Sarii ( Little Witch Sally). Ribon no Kishidealt with the adventures of Princess Sapphire of a fantasy kingdom who had been born with male and female souls, and whose sword-swinging battles and romances blurred the boundaries of otherwise rigid gender roles. Sarii, the pre-teen princess heroine of Mahōtsukai Sarii, came from her home in the magical lands to live on Earth, go to school, and perform a variety of magical good deeds for her friends and schoolmates. Yokoyama's Mahōtsukai Sariiwas influenced by the U.S. TV sitcom Bewitched, but unlike Samantha, the main character of Bewitched, a married woman with her own daughter, Sarii is a pre-teenager who faces the problems of growing up and mastering the responsibilities of forthcoming adulthood. Mahōtsukai Sariihelped create the now very popularmahō shōjoor " magical girl" sub-genre of later manga. Both series were and still are very popular.