Period timeline datasets — About the data

About the datasets

The collection includes selected Nintendo home consoles, the birth dates and membership periods of 51 Morning Musume members, and major Windows client releases. Each detail page lists its source and the date checked. Morning Musume birthdays and membership dates are shown at exact date precision.

Edit a timeline

Choose “Edit in the period timeline maker” on a detail page to load its data in the tool. You can edit names, dates, and colors, then save or share the image.