In the context of View of Tenpōzan Park in Naniwa, explain the Subject of the Print details.
The prints depict a scene of crowds visiting Tempōzan Park in Naniwa, the former name for present-day Osaka. Tempōzan—literally Tempō (era) mountain—was an approximately 20-meter high man-made hill created in 1831 (year 2 of the Tempō era) through the dredging of the adjacent Ajigawa River.  It was intended to improve ship access to the port and help prevent flooding. The mound also served as a marker for ships, earning it the nickname "Landmark Mountain" mejirushi yama (目印山) among local sailors.After pine and cherry trees were planted on its slopes, Tempōzan drew increasing numbers of visitors, particularly in spring when it was customary to participate in o-hanami (お花見) cherry blossom viewing. As it developed into a popular leisure spot, kakechaya (掛茶屋) tea houses and cafes sprang up to service the crowds.
Sadamasu's print offers a panoramic view of Tempōzan crowded with visitors partaking in o-hanami. The mountain is encircled by a stone wall and bounded on the other side by the bay and port. The scene is lively, packed with figures whom Sadamasu depicts in considerable detail. Those depicted fall into various social ranks and classes including courtesans and geisha, samurai, servants, hawkers and chōnin townspeople. It provides a graphic example of what Calza describes as "the life and social whirl" of the Edo period.
Edo samurai geisha chōnin Edo period Tempō Tempōzan o-hanami Osaka