コロンブスがアメリカ大陸を発見したとき、バイソン（アメリカ野牛）は、広大な地域に棲んでいた。

Sentence Analyzer

コロンブスがあめりか大陸を発見したとき、ばいそん（アメリカ野牛）は、広大な地域に棲んでいた。

English Translation

When Columbus discovered America, bison (American buffalo) inhabited a wide-ranging area.

Furigana

コロンブスがアメリカ大陸(たい)を発見(はっけん)したとき、バイソン（アメリカ野牛(やぎゅう)）は、広大(こうだい)な地域(ちいき)に棲(す)んでいた。

Romanji

Koronbusu ga Amerikatairiku o hakkenshita toki, baison Amerika yagyū wa, kōdaina chiiki ni sundeita.

Words

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

アメリカ大陸 (アメリカたいりく)

American continent; the Americas

を (を)

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

発見 (はっけん)

discovery; detection; finding

とき (とき)

regular (stops at every station) Jouetsu-line Shinkansen

バイソン (バイソン)

bison

亜米利加 (アメリカ)

America; United States of America

野牛 (やぎゅう)

buffalo

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

広大 (こうだい)

huge; very large; vast; extensive; magnificent; grand

地域 (ちいき)

area; region

に (に)

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

棲む (すむ)

to live (of animals); to inhabit; to nest