Ответ:
Выбираем формы по времени действия: общеизвестные современные факты употребляются в Present Simple, а события прошлого — в Past Simple.
- In Kobrin, there grows an oak tree that is about 400 years old. Nobody knows who planted it in the centre of the town. In 2020, the tree got an official name — Volat. In the past, local people believed that touching it on Midsummer’s day protected them from illnesses. How many events does the oak tree remember?
- How did the history of Dzisna begin? With a fortress that protected Polotsk from the Livonian Knights. In 1563, they built a powerful castle. A few years later, the town got Magdeburg city rights. Today, Dzisna is the smallest town in Belarus. No more than 1,500 people live here.
