For the number:
千九百七十
せん きゅうひゃく ななじゅ
sen kyuuhyaku nanajuu
One thousand nine hundred seventy
For the year:
千九百七十年
せん きゅうひゃく ななじゅねん
sen kyuuhyaku nanajuu nen
One thousand nine hundred seventy year
Seventy is "nanajuu." It's pronounced: nah-nah-joo.
700 is pronounced "nanahyaku" in Japanese.
When you first learn Japanese you're told 'shichi' - しち, but sometimes depending on the sentence, and other times just personal preference, 'nana' - なな has the same meaning.
hachi
七十七
七十九 nanajyuu (70) + kyu (9).
To say "seventy-six" in French, you would say "soixante-seize."
It's ten hundred and seventy-four.
Seventy can be translated into Kikuyu language as mirongo mugwanja.
Septuaginta.
"Setenta" (say-ten-taw)
One thousand seven hundred seventy six.
fifty is cincuenta, seventy is setenta, and eighty is ochenta.
seventy = siebzig
Seventy-five thousandths.