Shone is a past and past participle form of the verb shine, when shine is used as an intransitive verb meaning to emit light. Shone is a comes from the Old English word scinan, meaning shed light, be radiant, illuminate.
Shown is the past participle of the word show, which is a verb meaning to make noticeable, exhibit, to present, to bestow. The word show has existed in its present form since around 1300, to mean act of exhibiting, to view. In the early sixteenth century, show also obtained the meaning of an appearance put on with intention to deceive. In the early eighteenth century show came to mean ostentatious display.
Examples
“The sun shone virtually all day and while the weather doesn’t make the day it can certainly spoil it. (The Huddersfield Daily Examiner)
On a gloomy, rain-soaked morning, Protectionist and Lucia Valentina shone like beacons in separate heats. (The Daily Telegraph)
The sun shone on Ryhall as hundreds of visitors descended on the village’s annual summer gala day on Saturday. (The Rutland & Stamford Mercury)
The murkiness of the legality of Cecil’s hunt has shined a light on the controversy around legal trophy hunting, which is allowed in some African countries (Zimbabwe, South Africa) but banned in others (Botswana and Zambia). (National Geographic)
“This is the mandate given by people of Rajasthan against anti-development and negative politics of baseless allegations of Congress President Sonia Gandhi and Congress Vice President Rahul Gandhi and the people have shown the mirror of truth to Congress through this victory,” he said. (The Daily News & Analysis)
A photo of 11-year-old Hannah Pysher, her mother, Danielle, and stepfather, Alan, all of Norfolk, was one of 400 selected from thousands of entries around the country to be shown in a video in Times Square that will promote the Buddy Walk. (The Norfolk Daily News)