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Japan Know How archive

Author: Megan Rothwell

Your Name in Japanese

Why Japan Started Refusing Some Baby Names

Japan did not ban creative baby names. It changed what parents must prove. Since May 26, 2025, a newborn’s registered pronunciation must have a recognizable connection to the kanji chosen for the name.

Megan Rothwell

Writing & Language

Reading and Writing Are Two Different Skills

Japanese adults sometimes forget how to handwrite characters they still read and type every day. That gap reveals a practical lesson for learners: recognition and handwritten recall are separate skills.

Megan Rothwell

Japanese Crafts

Joints That Hold a Temple Together

Japanese joinery is not wood held together by magic. See how carpenters mark, cut and test structural joints—and why “without nails” needs qualification.

Megan Rothwell

Your Name in Japanese

Sato, Suzuki and the Long Tail Behind Them

Sato and Suzuki lead Japan’s surname rankings, yet even the national top ten account for only about one person in ten. This worked example follows Sato from a national survey to Okinawa, where Higa, Kinjo and Oshiro reveal a different historical and regional layer.

Megan Rothwell

Japanese Eras

Reading Your License, Card and Register

Japanese documents do not use one consistent calendar. Follow the same date across a driver’s license, residence card and family register to see where Western years appear, where era conversion is required and how copying a date literally can create a form error.

Megan Rothwell

Writing & Language

What the JLPT Measures and What It Skips

The JLPT measures vocabulary, grammar, reading, and listening across five levels, but it includes no speaking or writing section. Here is what American test takers need to know about registration, scoring, certificates, and the abilities the exam leaves untested.

Megan Rothwell

Writing & Language

The Characters the Government Signs Off On

Japan’s official character system is not one master list. Learn how the 2,136 commonly used kanji differ from the 1,026 school characters and the separate 863-character list used for personal names.

Megan Rothwell

Japanese Crafts

A Hundred Days of Composting Before Dyeing

Aizome does not begin with cloth entering blue liquid. In Tokushima, harvested indigo leaves are dried, composted for about one hundred days and turned into sukumo before a fermentation vat can make their pigment usable. The process explains both the depth of the craft and why synthetic indigo transformed its market.

Megan Rothwell

Japanese Eras

The Documents That Refuse the Western Year

Japan has not banned Western years from official paperwork. The real rule is form by form: family-register records favor era years, residence cards use Western dates, and licenses mix both. This guide shows how to read the field before entering a date.

Megan Rothwell