73
Lesson 73 of 84 · History
Inventions That Changed Our Lives
Inventors have changed history. The light bulb, the telephone, and the computer were all inventions that changed how people live.
Key Facts
1
A timeline shows events in order.
2
Old photographs teach us about long ago.
3
Artifacts are objects from the past.
Timeline
1963
Martin Luther King Jr. gives the 'I Have a Dream' speech
1964
The Civil Rights Act is signed
1969
Astronauts land on the Moon
Check Your Understanding
Question 1
1 of 2What is an artifact?