In what cultures, or geographical areas is savory/umami most commonly used?

Question:

I have a presentation in my foods class about the taste, Savory, and would like to hear your answers.`

Answer:

Isn't umami Japanese? Both flavors are found naturally, unami is common in Hawaiian and Pacific islander foods but I nominate Japan.....Portugal and many mediterranean diets use these flavors...still, for me Japanese food is where the word and heavy use of these flavors originated...China, too and always France.