dynaera.com
Quick lookup of current and historical eras
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What dynasty or era are in Japan or Taiwan now?

AD 840 in Japan is ...

Heian 47

See also:
837
838
839
841
842
843

AD 840 is also...

Kofun 591

Asuka 303

Nara 131

Heian 47

Age Lookup

Year Local year Age Ganzhi Zodiac
837 Heian 44

1187

tei (hinoto) mi

Snake

838 Heian 45

1186

bo (tsuchinoe) uma

Horse

839 Heian 46

1185

ki (tsuchinoto) hitsuji

Goat

840 Heian 47

1184

ko (kanoe) saru

Monkey

841 Heian 48

1183

shin (kanoto) tori

Rooster

842 Heian 49

1182

jin (mizunoe) inu

Dog

843 Heian 50

1181

ki (mizunoto) i

Pig