toothbrush

Around 1844, the first three-row bristle toothbrush was invented.

toothbrush

Prior to the 1840s, toothbrushes had only one row of bristles. With the benefit of being able to cover a larger surface area in mind, toothbrush makers began introducing changes to the standard toothbrush design in about 1844. Three rows of bristles would later become the standard for most commercial toothbrushes, proving to be more effective than the previous single row.

Related Facts
anxiety, anxiety symptoms, anxiety medication, social anxiety, anxiety attack, high functioning anxi

Anxiety And Depression Are Linked

cambodia, cambodia facts, facts about cambodia

Did you Know? Cambodians celebrate the New Year in April

constellations, night, sky, glowing, ancient, magnitude, sirius, mensa, visual, greek

Knowledge Of Constellations Came From Early Cultures

bill murray, bill murray army movie, bill murray actor, bill murray alive, actor bill murray, angel

Did you know.... Bill Murray is not represented by an agent.

 Homi J Bhabha, nuclear physics,  Isaac Newton Studentship, cosmic rays, doctorate

Some of the publications produced by Homi J Bhabha are still highly regarded today.

greece facts, facts about greece, greek islands, greek facts, facts about greeks, greece islands

Did you Know? Apollo's Wrath is one of the Greek Mythology Facts.

Switzerland

Switzerland has 208 mountains and some of Europe's highest peaks.

Alzheimer's disease

Alzheimer's disease affects the brain's straucture

drugs

The prolonged use of OTC drugs can result in ulcers.

gummy bears, gummy treats, gummy fruits, gummy snacks, gummy cola

Did you Know? Fruit snacks and cars are coated in the same type of wax.

vitamin, green leafy, broccoli, kale, spinach

You could be well on your way to a healthier and longer life.

indian ocean, indian ocean facts, facts about indian ocean

Did you Know? Indian Ocean Has a Submerged Continent

oscars, theartist, bestpicture, 1929, wings, charlesbuddyrogers, richardallen, clarabow, younggaryco

Did you Know? Who was the First Female Best Director

Birmingham, Venice, Italy, United Kingdom, England

The World's Largest Pre-Raphaelite Painting Collection

T-shirts, t shirts, tshirts, tshirt facts, t shirt, tshirt, tshirt water, tshirt making

Did you Know? T-shirt got its name so because it resembled letter T.

Monkeypox

Who is affected by monkeypox?

zodiac, virgo, scorpio, chinese, language, hiring manager, feisty, critical, cancer, fbi, most dange

Sagittarians are more likely to become child stars.

 digital sound

What is digital sound and why is it superior to analogue sound?

nails, nail

The same protein is used to make both your hair and nails.

painting, famous, muse, artist, paint, art, beauty, canvas

Scream was inspired by real-life events that occurred in Gainesville, Florida, in the early 1990s.

lotion, Moisturizing, vitamin C, collagen,  wrinkles,  skin suppleness

Don't forget the serum.

Marie Curie  psychic medium

Marie Curie once conducted research on a psychic medium.

mcdonalds hot dog

Did you Know? McDonalds Started with Hot Dogs not Burgers

iguana, reptile

Iguanas: How Fast Can They Run?

Foreigners

Foreigners make up 25% of switzerland's population