Laurels in the SCA
In the SCA, the Laurel is awarded to those who excel in a particular area of Arts and Sciences, and it's in the job description for them to pass on knowlege to others. These people also judge A&S competitions, pass on recommendations to the Crown as to who future laurels should be, and are examples of courtesy and chivalric conduct. A Laurel may take on an apprentice to train up to 'laurelhood', often in a particular field similar to their own.
Becoming a Laurel (or any type of peer) takes about 10 years of dedicated work, on average.