Question: Who was promoted to Corporal at the age of 10?
About the article "World War I", section "Serbian campaign".

Candidate passages:
Born in Glasgow on 30 September 1828, Knox joined the British Army at the age of 14.
He was under-age, but was unusually tall, he was promoted to corporal before reaching the age of 18. 
United States.
United States Army.
In the U.S. Army corporal is preceded by the first three forms of private and the rank of specialist.
A corporal rank shares the same pay grade (E-4) as a specialist.
Unlike a specialist, however, a corporal is a non-commissioned officer and may direct the activities of other soldiers.
A soldier may be promoted to corporal directly from the rank of private first class or laterally promoted from specialist.
The typical criterion for promotion to corporal is that the junior enlisted soldier must be serving in a leadership position that would typically be occupied by an NCO such as a sergeant or higher.
Normally these promotions are given to specialists who work in an NCO position but who are prevented promotion to sergeant (E-5) due to not having sufficient promotion points.
This promotion is done at the discretion of the unit commander; many specialists serve in NCO positions.
For a time, it was not uncommon to find paralegal corporals assigned to the legal assistance branch of a post's staff judge advocate's office, despite often having little or no actual leadership duties.
Army Regulation 27-55 "Notarial Services" conferred (under provisions of 10 U.S.C.
§§ 936, 1044a) authority to act as a notary and consul of the United States upon JAG Corps NCOs.
Notarisation of powers of attorney and other documents is a "bread-and-butter" task in such offices, which necessitated the presence of either NCOs or state notaries.
AR 27-55 was later amended to confer the authority on such paralegal specialists who are so designated by their respective staff judge advocate.
It is common for a corporal to lead a fireteam; however, if a soldier is promoted to corporal and there are too many soldiers of that rank, the new corporal will stay in his current position. 
In the Danish military the rank of corporal ("korporal" in Danish) is the lowest rank of the NCO group.
Professional (non-conscripted) soldiers, often those with the rank of "overkonstabel" (somewhat similar to “specialist” in the U.S. Army) may sometimes get selected for the rank of corporal, if they have unique experience or skills.
This can't be given as a battlefield appointment and the aspiring corporal has to take a 3-week course in order to be promoted.
A corporal will often be given a task similar to that of other countries corporals; i.e.
ad hoc assistance of squad-commanders.
In the homeguard a private can after completing a 10 day course get promoted to the rank of corporal and function as second in command of an infantry squad.
The rank of corporal was phased out but was reintroduced into the Danish Army in October 2008. 
 "For further information, you may refer to Israel Defense Forces ranks."
In the Israel Defense Forces, soldiers are promoted from private to corporal ("rav-turai" or "rabat") after 7–10 months of service (7 for combatants, 8 for combat support and 10 for non-combatants), if they performed their duties appropriately during this time.
Soldiers who take a commander's course, are prisoner instructors or practical engineers become corporals earlier.
Corporals get a symbolic pay raise of 3.60 NIS and those who are also non-commissioned officers ("mashak") are able to command privates in their respective units.
A corporal may be promoted to sergeant about 11 or 12 months after becoming a corporal, or to the rank of second lieutenant if they complete an officer's course. 
Appolon Andreevich Dashkov was born in 1753.
At the age of four he was enlisted into bombardment regiment of artillery.
Also when he was a child he was promoted to the rank of corporal, quarter-master-sergeant and of sergeant when he was 14.
Sixteen years-old Dashkov received an appointment as bayonet-junker (like warrant officer but not an officer) and on the January 1, 1772 he was promoted to the rank of second lieutenant.