Egyptian Inventions

These are the five inventions I will rank and describe
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Ancient inventions, the future of science

1. Sun dials- Sun dials in Egypt, also called Obelisks, were four sided monuments that used shadows to measure time. These obelisks also showed the year's longest and shortest days. The Egyptian sun dials became portable in around 1500 B.C. These divided daytime and night-time as well. This invention helped Egyptians create a calendar system, a time system and know in every circumstances, about their times. (Source http://inventors.about.com/library/weekly/aa071401a.htm)
2. Marshmallows- These candies originated in Egypt, first being a honey candy which was flavored with the marsh-mallow sap. This plant was harvested on the side of rivers and the banks of large bodies of water. This sweet treat was described as so tasteful that it was reserved for the Pharaohs and Gods (Sources: http://inventors.about.com/od/foodrelatedinventions/a/marshmallows.htm and http://www.campfiremarshmallows.com/about/history-of-the-marshmallow/ )
3. Tampons- The ancient Egyptians created the worlds first tampons. These were made from softened papyrus. These disposable tampons are the first recorded ones in history. These helped women with their menstruation.
4. Hieroglyphics- These symbols contain a mix of symbols, pictures, and alphabet-like-letters. These writings helped the Egyptians describe important events like battles, lives of pharaohs, and things about their Gods. (Source: http://science.howstuffworks.com/innovation/inventions/5-amazing-ancient-egyptian-inventions.htm#page=2)
5. Door locks- Egyptians created the door lock around 4000 B.C, which was similar to the "pin-tumbler lock"(shown at bottom of page). These locks were secure, and were opened with a key pushing the lock away, opening the door. These locks however, were big in size. Locks were important for privacy and for safety. (Source; http://science.howstuffworks.com/innovation/inventions/5-amazing-ancient-egyptian-inventions.htm#page=9)

RANKING OF INVENTIONS [Cue- The Final Countdown by Europe]

1. Hieroglyphics
2. Sun Dials
3. Door Locks
4. Tampons
5. Marshmallows

The lock http://upload.wikimedia.org/wikipedia/commons/7/7a/Pin_tumbler_with_key.png