What's is it's history?  Do it have linages?  What are it's techniques?  It has it's own weapons.  How effective is it?
History
Legend as it a women created it in southern China.  She was a nun of the Shaolin Temple.  Her name was Ng Mui.  Yim Wing-chun was her student that made it popular.  Some people believe it comes from European boxing, because it shares many similarities.          
Lineages
There are several different types of Wing Chun.  I will write about a few.
Ip Man: This style was created by Bruce Lee teacher.  It promotes offense/defense @ the same time, powerful short range attacks and conserving energy. 
Yuen Kay-shun: It has 12 principles and motions.    
Gu Lao- It has 40 techniques and it was created by a doctor.  
Pan Nam- Its quick, aggressive and powerful.   
Techniques
I will list a few.  
Lap Sau: Its a grab and press.
Bong Sau: Its deflects punches and can give you wrist control.
Pak Sau: Its a slap block.
Weapons
Here is a list of weapons: butterfly swords, dragon pole and long pole.  The butterfly swords are used 4 offense and defense @ the same time.  Both of the poles can be used 4 training and fighting.  The dragon pole is 7 feet and the long pole is 9 feet.
Effectiveness
Wing Chun is one of the best martial arts when it comes to self-defense.  It is eazy to understand and apply in a real fight.  It is conceptual, so you can apply many different techniques.  It is not as flashy as other forms of Kung-Fu.  
Conclusion
It has been around 4 centuries.  It has many linages and techniques.  It doesn't have that many weapons, but the ones it do have are pretty cool.  It may be the greatest martial art for self-defense you could ever learn!!!!
References
wikipedia.org 
https://www.dragoninst.com/blog/wing-chun-history/
https://wingchunjourney.co.uk/
https://www.wingchunassociation.com/
https://wingchunsingapore.sg
https://thekarateblog.com/wing-chun-techniques/
https://www.dragoninst.com/blog/is-wing-chun-effective/
