| 摘要 |
PROBLEM TO BE SOLVED: To provide a family tree formed by preventing different ancestries and generations from being included in a polyphyletic family tree and reducing intersections of ancestry lines, clearly showing a direct line of a person, clearly indicating a section of each ancestry and a relationship between the direct line of the person and the other ancestries, and restraining cost.SOLUTION: Phyletic family trees are arranged on the right or left side or on an upper or lower side by extending a relational ancestry line in accordance with an inter-ancestry relationship with respect to a based ancestry, and divided into zone pages on the basis of ancestries, and arranged on the basis of the pages. The pages are bound in a bound book such as a western book or a Japanese book, and folded as a folded book or by folding landscape paper, or formed as an electronic screen display. The family tree is structured so as to show relationships by horizontally or vertically spreading the reference ancestry and the other ancestries. |
