National ceviche day is take place around all of the country of peru. It's celebrated because ceviche is mostly consumed in the summer and it has the largest variety of presentations. for example:
ceviche de corvina
ceviche mixto
ceviche de conchas negras and many more.
Its main ingredients are: fresh fish, lemon, onion, chili pepper and salt. furthermore it's believe that this traditional meal had its origin in the moche culture, so in 2008 it was decreed that every june 28 is celebrated the national day of ceviche
for that reason, every june 28 are held in our country various activities in commemoration of the national dish foe exmple:
the first gastronomic fair invita Peru
Mega plaza
as well as in different parts of the country that remind us that the best ceviche is the peruvian. soa natural?

National Ceviche Day TAKES around all of PERU. It's celebrated because ceviche is mostly consumed in the summer and it has the largest variety of presentations. For example:
ceviche de corvina
ceviche mixto
ceviche de conchas negras and many more.
Its main ingredients are: fresh fish, lemon, onion, chili pepper and salt. Furthermore it's believeD that this traditional meal had its origin in the moche culture, so in 2008 it was decreed that every June 28 the national day of ceviche IS CELEBRATED.
For that reason, every June 28 various activities ARE HELD IN OUR COUNTRY in commemoration of the national dish foR exAmple:
the first gastronomic fair invita Peru
Mega plaza
as well as in different parts of the country TO remind us that the best ceviche is PERUVIAN.

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'variety of presentations' could be OK but I would say 'number of varieties'.