What is
Yogurt, in simple terms, is the bacterial fermentation of milk which is often sweetened or flavored. Lactobacillus & Streptococcus are the vital bacteria's for the yogurt's thick texture and consistency.
  
Whole milk is the raw, unpasteurized milk obtained from mammals like cows, buffalo, goat, sheep, yak, camel.
  
Origin
Central asian countries like kazakhstan, kyrgyzstan, tajikistan
  
East European countries- Bulgaria, Czech Republic, Ukraine