Past
Present
100

Long ago, people rode this animal.

A Horse 

100

Today, people ride in this.

A car 
200

Long ago, people used this to see at night.

A candle 

200

Today, we turn on lights with this.

Switch or lamp

300

Long ago, people used this to communicate with.

Pen and Paper

300

Today, people communicate using a.

A cellphone

400

Long ago, people washed their clothes a certain way.

By hand and a bucket.

400

Today, people use a certain machine to wash clothes. 

Washer machine

500

Long ago, people didn't have stoves, so they cooked above.

Fire 

500

Today, people use a certain appliance to cook their food on.

A stove