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SeaElEl
@seaeiei
Puzzles: Interlocking pieces
Puzzles started expanding beyond learning, with puzzles showing nursery rhymes, fairytale subjects, ships, and trains.
In the early twentieth century, gaming company Parker Brothers invented interlocking pieces, each one cut by hand.
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Joanne (Jo)
@jojo_the2nd
On the consolatory pleasure of jigsaws when the world is in bits
Jigsaws began as dissected maps
- John Spilsbury invented puzzles in the 1760s as a way to make geography lessons more fun for schoolchildren.
- They remained part of the classroom until the ...
Jigsaws increase in popularity
- The early maps did not have a paper picture to act as a guide. In 1908, Parker Bros added a print of the complete image to the box.
- Picturing the destination made puzzles more enticing.
- The Great Depression in the 1930s increased sales of jigsaws in the United States to top a million a week.
Solving a jigsaw is rewarding
Completing a jigsaw of an artwork entails getting to know the artist's work intimately, becoming familiar with every element and gradation of colour and tone.
Intriguing jigsaw pieces are vital sources of information to the puzzle. They create data points that guide you to completion.
Carlos B.
@carlos_tb483
A history of Valentine's Day celebrations – from fertility festivals to the first cards
Valentines day is not a modern idea
The history of Valentine's Day can be traced back to ancient Rome.
From 13 to 15 February, ancient Romans celebrated the feast of Lupercalia. Roman men...
Valentines day becomes Christianised
At the end of the 5th century, Pope Gelasius I declared 14 February to be Valentine's Day. He attempted to reclaim the festival of the Romans and Christianise it.
It is not certain which St Valentine this day was initially dedicated to. Both saints were martyred in Rome: Valentine of Terni around AD 197 and Valentine of Rome around AD 496.
Valentine's Day linked to love
In 1382, Geoffrey Chaucer wrote his poem Parlement of Foules. The poem contains the first recorded instance of St Valentine's Day being linked to romantic love.
"For this was on seynt Volantynys day
Whan euery foul comyth there to chese his make."
Some argue that Chaucer was talking of May time when birds are more likely to mate in England. This coincides with the feast of St Valentine of Genoa that falls in May.
Andrea A.
@andreafaa157
A visual history of pandemics
A History Of Pandemics
- A Pandemic is defined as the proliferation of a disease over the whole country or the entire world.
- Diseases and illnesses have troubled humanity since the earliest days, but ...
Quarantined
- The original use of the word Quarantine was the act of anchoring a ship arrived in Venice, Italy, for 40 days before landing.
- Infectiousness of any disease is measured by the reproduction number (R0, or R naught). For example, Smallpox has an R0 of 6 whereas Measles has an R0 of 16.
- Vaccination, if available, and herd immunity can curb the spread of disease.
- Big cities, with exploding population and traffic, can lead to the rapid spread of any infectious disease.
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