# 40th century BCE

> 오리의 가축화

<오리>의 <가축화>
## Decades

- <3900s BCE>
- <3910s BCE>
- <3920s BCE>
- <3930s BCE>
- <3940s BCE>
- <3950s BCE>
- <3960s BCE>
- <3970s BCE>
- <3980s BCE>
- <3990s BCE>