| Created |
| Associated with 四月馬鹿RFC |
| Associated with エイプリルフール |
| Associated with エイプリールフール |
| Associated with 四月馬鹿 |
| Associated with April Fool |
| Associated with april fool |
| Associated with エイプリールフールRFC |
| Associated with 4月1日 |
| Disassociated from 四月馬鹿RFC |
| Disassociated from エイプリールフールRFC |
| Associated with 4月馬鹿 |
| Associated with 万愚節 |
| Associated with エイプリル・フール |