Questions about Portugal from GINUE

We want to learn deeply about your country, Portugal. 

 

1. Why is egg tart famous?

https://ibb.co/Xyp5fhZ

2. How could they have many colonies even though their territory was not that big?

https://namu.wiki/w/%ED%95%B4%EA%B0%80%20%EC%A7%80%EC%A7%80%20%EC%95%8A%EB%8A%94%20%EB%82%98%EB%9D%BC

3. Why is port wine famous and delicious?

https://ibb.co/q5NR0NW

plz comment and answer these questions!

GINUE(Gyeongin National University of Education) is the largest National University of Education in Korea.
https://www.ginue.ac.kr/eng/Main.do


Most GINUE students are supposed to teach primary school students in Gyeonggi and Incheon region around SEOUL. 
We, GINUE students, are very sorry that we lack knowledge and teaching materials about your country... 
 So... we decided to get some help from you to learn about your country. 
 Would you kindly be our teacher? 

 ---------------------------------------------------------------------------------------------