| Name | # Files | Name | # Files | Name | # Files | ||
|---|---|---|---|---|---|---|---|
| X_chromosome | 2 | X-ray | 5 | X-ray_astronomy | 2 | ||
| X-ray_diffraction | 3 | Xavier,_St_Francis | 3 | Xenon | 2 | ||
| Xenophon | 2 | Xerography | 2 | Xerophyte | 2 | ||
| Xerxes | 2 | Xhosa | 2 | Xi_Jiang | 2 | ||
| Xiamen | 2 | Xian | 2 | Xian_Incident | 2 | ||
| Xingu | 2 | Xinhua | 2 | Xining | 2 | ||
| Xinjiang_Uygur | 2 | Xizang | 2 | Xmas | 4 | ||
| Xochimilco | 2 | Xylem | 2 | Xylophone | 4 | ||
| XYZ_Affair | 2 |