20
Lesson 20 of 84 · Past, Present, and Future
Travel and Vacations Then and Now
Food has changed too. Long ago, families grew most of their own food. Today we can buy food from all over the world at the grocery store.
Key Facts
1
People used horses before cars were invented.
2
Some things stay the same through history.
3
Technology keeps changing how we live.
Check Your Understanding
Question 1
1 of 2Why do we learn about history?