すなわち

Also written 即ち, 則ち, 乃ち

Meanings

Conjunction that is (to say); namely; i.e.; or
precisely; exactly; just; nothing but; neither more nor less
if one does ..., then; in that case; then (as ...ば～; indicates that what follows is a natural consequence)
so; accordingly; thereupon; then

パーティーが来週の土曜日すなわち８月２５日に行われる。
A party will be held next Saturday, that is to say, on August 25th.
それは３年後、すなわち１９６５年に起こった。
It happened three years later, that is in 1965.
それは１週間前、すなわち４月２日に行われた。
It was due a week ago, namely on April second.
すなわち彼はそれをしたくないのだ。
In other words, he doesn't want to do it.
さらに時間がたつとこれらの「クリオール」は独立した言語になった：すなわち、スペイン語、フランス語、イタリア語、などである。
As more time passed, these Creoles became separate languages: Spanish, French, Italian, etc.