- Ritual
- Išnáthi Awíčhalowanpi／イシュナティ・アウィチャロワンピ（初潮成人儀礼）
- Region and community
- 米国北部Great Plains／Lakota女子
- Age at the cultural rite
- Variable or not confirmed in the source
- Transition conditions
- Community initiation / Menarche or physical maturity / New social responsibilities
- Legal age of majority
- United States18–21 years, by stateUnited States · 47 states and Washington, D.C., use 18. Alabama and Nebraska use 19, and Mississippi uses 21. Mississippi permits certain property contracts from 18. · Law and supporting sources 1 · Law and supporting sources 2
About the rite
Išnáthi Awíčhalowanpi welcomes a Lakota girl into womanhood after menarche. Supported by women, she prays, receives teaching, and learns responsibilities toward family and community.
The Brave Heart Society revived the ceremony in 1997 and reports that more than two hundred girls had participated by 2026. Its program documents a continuing revival, not a single uniform form practiced by every Lakota community.
Related rites
