1421 Nî: Nî

chhian-liân-kí:	2 chhian-liân-kí
sè-kí:	14 sè-kí \| 15 sè-kí \| 16 sè-kí
cha̍p-nî-kí:	1390 nî-tāi \| 1400 nî-tāi \| 1410 nî-tāi \| 1420 nî-tāi \| 1430 nî-tāi \| 1440 nî-tāi \| 1450 nî-tāi
nî:	1416 nî \| 1417 nî \| 1418 nî \| 1419 nî \| 1420 nî \| 1421 nî \| 1422 nî \| 1423 nî \| 1424 nî \| 1425 nî \| 1426 nî

**1421 nî tī kî-thaⁿ le̍k-hoat**
Kan-chi	Keng-chú nî — kàu — Sin-thiú nî
Gregorius le̍k	1421 nî MCDXXI
Julius le̍k	pí Gregorius le̍k chá 9 kang
Hu̍t-le̍k	1965 nî
Tō-kàu-le̍k	4118 nî
Hoê-le̍k	824~825
Hông-kì	2081 nî
Tân-kì	3754 nî
Hi-pek-lâi-le̍k	5181~5182
Se-chōng-le̍k	iông thih chhí (lcags pho byi) — kàu — im thih gû (lcags mo glang)
Hindu le̍k
- Vikram Samvat	1476 – 1477
- Shaka Samvat	1343 – 1344
Iran le̍k	799 – 800
Runic le̍k	1671
Assyria le̍k	6171 nî
Ethiopia le̍k	1415~1416

Liân-hō

Tāi-bêng-kok: Éng-lo̍k (永樂) 19 nî
Ji̍t-pún (Muromati sî-tāi): Èng-éng (應永) 28 nî

Tang A-chiu kun-chú kì-goân

Tāi-bêng-kok: Sêng-chó͘ (成祖) 19 nî
Tiâu-sián-kok: Sè-chong (世宗) 3 nî
Liû-kiû-kok: Siōng Su-siāu Ông (尚思紹王) 16 nî

Sū-kiāⁿ

Kok-ka léng-tō-chiá

Chhut-sì

12 goe̍h 6 ji̍t: Henry 6-sè, Eng-lân Ông-kok chèng-tī-chiá. Eng-lân kun-chú. 1471 nî kòe-sin.

Kòe-sin

5 goe̍h 26 ji̍t: Mehmed 1-sè, Osman Tè-kok chèng-tī-chiá. Osman Tè-kok ê Sultan. 1390 nî chhut-sì.

Bô ji̍t-kî

Barom Soccoroch, kok-ông.

Chham-khó chu-liāu

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