Automaton

Automatons was early robots.

Those are examples of automatons made in 18th century and late 17th century.

First example is boy writer made by clockmaker Jaquet Droz in 18th century. This example is made so that every letter can be changed in mechanism so that boy can write different words, it menas any word can be written. This is like early type of programing.

Other example is from late 17th century. This is boy writer, but his writing is simplified and it letters can not be changed in mechanism. He can also draw.  

Whole system of those robots are based on development of technology of mechanical clocks. Mechanical clocks are invented in Europe in Middle Ages, it is hard to determine exact date. 

Some types of mechanical clocks appear also in China. 

In Middle Agesm in Europe appear from High Middle Ages clocks on towers. Also there also appears automatons in clocks. It was type of robots in clocks who made some moves when time is counted down. 

Some sophisticated automatons is mentioned at the Boukoleon palace in Constantinople in Middle Ages.

Invention of screwdriver in Late Middle Ages

Screwdriver is invention that go back to Late Middle Ages. Invention first came from Germany or France.

First mention is from german book Hausbuch von Schloss Wolfegg (Hausbook of castle Wolfegg) from 1480.. Book is about usefull arts for nobleman at that time.

Page from book

In Germany screwdriver was called schraubendreher and in France is called tournevis.

First screwdriver was only of one type and it is used for securing breastplate and frogmouth helmets (tournament helmet) and first shotguns (so called matchlock).

About all that write Witold Rybczynski in his book One Good Turn: A Natural History of the Screwdriwer and the Screw.

Invention of eyeglasses

Eyeglasses are first mentioned in work of Florentine Dominician friar Giordano da Pisa (1255–1311) in 1306.. He wrote that eyeglasses are invented 20 years before his writing and that he personaly meth inventor even he did not mention his name. 

Inventor is certainly from nothern Itlay, probably from Pisa.

First picture of eyeglasses is from 1352. on portrait of cardinal Hugg de Saint-Cher made by Thommaso de Modena. We can see here that cardinal is wearing the glasses.

First picture of glasses in the world

First eyeglasses was only for reading and not for farsight.

Baby walker

Baby walker is not modern invention. First baby walkers was from 15th century as we can see in manuscripts.

This is from manuscript Le livre d'heures de Catherine de Clèves from 15th century. Here baby Jesus Christ is walking in baby walker.

This is from manuscript Humans ages, 15th century.

It can be seen in more 15th century manuscripts.

Interesting armour of Julius Brunswick, 16th century

This is armour of Julius, Duke of Brunswick-Lüneburg (1528 –1589).

Julius was Protestant. 

He established University of Helmstedt.

Extraordinary decorated 16th century armour

As you can see this is extraordinary decorated armour with gold and engravings. Armour engraving and every type of decoration of armours face begane in 16th centrury (before that there was coloring of armour, using silver and gold plate stripes, engraving of stripes). Before 16th century there was certain systems of engravings of gold and silver plate stripes on armour, but there was not engraving of armours face or it was really rare. Yet in 16th century we can see every kind of armour decorations, mostly in style of rennaissance art forms. This type of armour and every kind like this decorated armour was not used in fights (certainly armours in fights was  decorated in some degree). 

Youngest mother

Article about youngest mother in the world:
http://curioushistorian.com/the-story-of-lina-medina-the-worlds-youngest-mother