I love taking showers! I do not know how I would live without the modern showers. In ancient times people would pour jugs of cold water over themselves and consider that a shower
It would be like living in the stone age.  WHen were showers first invented?
Well that is hard to determine because original showers were neither indoor structures of man-made, they were actually formed by natural things in nature such as waterfalls. 
When did modern showers become common
The Ancient Greeks were actually the first people to take showers, but the date is unknown.
Really?  So before that everyone took baths 
Yes, they used to take baths in basins, but found out that showers were a lot more efficent