Tie a bow Tie

The bow tie <https://how-to-tie-a-bow-tie.blogspot.com/> was first worn by
Croatian mercenaries during the 17th century, where men tied scarves around
their necks to hold the openings of their shirts together. This neat
tailoring trick was adopted by fashionable French aristocrats (who called
it a cravat), and the bow tie quickly gained popularity in 18th and 19th
century France.

The style eventually spread across Europe and evolved into a symbol of
power and luxury, but soon after the turn of the 20th century, it also
became popular among men in academic and scientific fields.
I found very good article that describe how to tie a bow tie here:
https://how-to-tie-a-bow-tie.blogspot.com/
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Eng. Zaki Rimawi
https://www.it-weblog.com/