In 1837, the personal union of the United Kingdom and Hanover ended because William IV's heir in the United Kingdom was female (Queen Victoria). Hanover could be inherited only by male heirs. Thus, Hanover passed to William IV's brother, Ernest Augustus, and remained a kingdom until 1866, when it was annexed by Prussia during the Austro-Prussian war. Despite being expected to defeat Prussia at the Battle of Langensalza, Prussia employed Moltke the Elder's Kesselschlacht order of battle to instead destroy the Hanoverian army. The city of Hanover became the capital of the Prussian Province of Hanover. After the annexation, the people of Hanover generally opposed the Prussian government.
What ended in the year 1837?
the personal union of the United Kingdom and Hanover

The referee may punish a player's or substitute's misconduct by a caution (yellow card) or dismissal (red card). A second yellow card at the same game leads to a red card, and therefore to a dismissal. A player given a yellow card is said to have been "booked", the referee writing the player's name in his official notebook. If a player has been dismissed, no substitute can be brought on in their place. Misconduct may occur at any time, and while the offences that constitute misconduct are listed, the definitions are broad. In particular, the offence of "unsporting behaviour" may be used to deal with most events that violate the spirit of the game, even if they are not listed as specific offences. A referee can show a yellow or red card to a player, substitute or substituted player. Non-players such as managers and support staff cannot be shown the yellow or red card, but may be expelled from the technical area if they fail to conduct themselves in a responsible manner.
Managers and support staff is considered what and thus cannot be shown a card?
Non-players

Sunlight is also captured by plants as chemical potential energy in photosynthesis, when carbon dioxide and water (two low-energy compounds) are converted into the high-energy compounds carbohydrates, lipids, and proteins. Plants also release oxygen during photosynthesis, which is utilized by living organisms as an electron acceptor, to release the energy of carbohydrates, lipids, and proteins. Release of the energy stored during photosynthesis as heat or light may be triggered suddenly by a spark, in a forest fire, or it may be made available more slowly for animal or human metabolism, when these molecules are ingested, and catabolism is triggered by enzyme action.
What is also captured by plants as chemical potential energy in photosynthesis?
Sunlight