691 Nî: Nî

chhian-liân-kí:	1 chhian-liân-kí
sè-kí:	6 sè-kí \| 7 sè-kí \| 8 sè-kí
cha̍p-nî-kí:	660 nî-tāi \| 670 nî-tāi \| 680 nî-tāi \| 690 nî-tāi \| 700 nî-tāi \| 710 nî-tāi \| 720 nî-tāi
nî:	686 nî \| 687 nî \| 688 nî \| 689 nî \| 690 nî \| 691 nî \| 692 nî \| 693 nî \| 694 nî \| 695 nî \| 696 nî

**691 nî tī kî-thaⁿ le̍k-hoat**
Kan-chi	Keng-în nî — kàu — Sin-báu nî
Gregorius le̍k	691 nî DCXCI
Julius le̍k	pí Gregorius le̍k chá 3 kang
Hu̍t-le̍k	1235 nî
Tō-kàu-le̍k	3388 nî
Hoê-le̍k	71~72
Hông-kì	1351 nî
Tân-kì	3024 nî
Hi-pek-lâi-le̍k	4451~4452
Hindu le̍k
- Vikram Samvat	746 – 747
- Shaka Samvat	613 – 614
Iran le̍k	69 – 70
Runic le̍k	941
Assyria le̍k	5441 nî
Ethiopia le̍k	685~686

691 nî tī Julius Le̍k-hoat lāi-bīn sī chi̍t ê pêng-nî, thâu kang sī lé-pài-ji̍t.

Liân-hō

Bú Chiu: Thian-siū (天授) 2 nî

Tang A-chiu kun-chú kì-goân

Bú Chiu: Chek-thian Hông-tè (則天皇帝) 2 nî
Sin-lô: Sîn-bûn-ông (神文王) 11 nî

Sū-kiāⁿ

Kok-ka léng-tō-chiá

Chhut-sì

Kòe-sin

Chham-khó chu-liāu

Tī Wiki Commons téng ê siong-koan tóng-àn: 691 nî

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