When Cao Pi, King of Wei, usurped the throne from Emperor Xian, the Han Dynasty ceased to exist.

When he dies his son Cao Pi succeeds to the throne and proclaims himself emperor of Wei.

When an all-out war was about to break out, the news that Cao Cao planned to attack Hanzhong was received by Liu Bei, and he requested for a border treaty with Sun Quan as he became worried about Cao Cao seizing Hanzhong.

When Hua Tuo was sentenced to death after incurring the wrath of Cao Cao, who controlled the Imperial Court, the physician tried to entrust the text to his gaoler.

When Cao Cao inquired the reason, Guan Yu replied, " Sir, I'm very grateful to you for the steed because with it, I can reach my sworn brother in a shorter period of time if I ever know where he is.

When he saw the plight of Cao Cao's defeated troops and Zhang Liao, whom he befriended when he serving Cao earlier, he decided to allow Cao and his men to leave.

When Cao Cao opened the box containing Guan Yu's head, he saw that Guan's facial expressions resembled that of a living person.

When Cao Cao was leading a campaign against Tao Qian, the governor of Xu Province ( 徐州 ; covering present-day northern Jiangsu ) whom Cao accused of killing his father, Xiahou Dun was left with the responsibility of defending Yan Province.

When Cao Cao learned of the rebellion, he hastily returned and laid siege on Lü Bu in Puyang.

When Guan Yu surrendered to Cao Cao after Liu Bei was defeated at Xu Province, Xiahou Dun was one of those sceptical of Guan.

When Cao Song went to see his son, Cao Cao behaved normally.

When, in late afternoon on the last day in June, he saw two people top the ridge to the south and walk toward the house, he quit work immediately and strode to his rifle.

When he saw the expression in her eyes, he knew he couldn't send them on.

When they turned in the saddle they could see the men behind them, strung out on the prairie in a flat black line.

When one of the men in the hall behind us spat on the floor and scraped his boot over the gob of spittle I noticed how the clerk winced.

When they reached their neighbor's house, Pamela said a few polite words to Grace and kissed Melissa lightly on the forehead, the impulse prompted by a stray thought -- of the type to which she was frequently subject these days -- that they might never see one another again.

When Fred Powell's brother-in-law, Charlie Keane, moved into the dead man's home, the anonymous letter writer took no chances on Charlie taking up where Fred had left off and wasted no time on a first notice:

When I fell on my back, I saw a vulture hovering.

Joyce went on, `` When we'd finished, Lou -- Mr. Thor -- asked me to stay a little longer.

When we opened the door again for business and switched on the lights she said:

When he sank on his knees, they had allowed him to char without administering the stroke of mercy.

When he got closer to the tree, Matsuo noted the wild look on his face.

When he rolled on the left side, propping on his left elbow, Matsuo seized his hair and pulled him back over.

When her hand touched his, fire went through Jack and he felt weak, but he managed somehow to get her on her feet.

When he finally left the sinister mansion on Perdido Street, he was carried out in a coroner's basket.

When you pass a church on an Irish bus, all the hands flurry in the sign of the cross.

When he was stripped, deloused and numbered by his guards, his much-thumbed sketchbook was seized and thrown on a pile of prisoners' goods to be confiscated.

When combined with the metaphysical notion that pure forms of this universe are best appreciated when least embodied in a material substratum, it becomes clear that while earth will be dross on a scale of material-formal ratios, celestial bodies will be of a subtle, quickened, ethereal existence, in whose embodiment pure form will be the dominant component and matter will be absent or remain subsidiary.

When the family business failed, Mercer left school and on his mother's urging -- for she hoped that he would become an actor -- he joined a local little theater group.

Besides doing a single song, `` When The Sun Comes Out '', they worked on the ambitious American-Negro Suite, for voices and piano, as well as songs for films.

When I returned to make my report, the Hetman did not remember having sent me on the secret mission.

When Fred wheeled him back into his room, the big one looking out on the back porch, and put him to bed, Papa told him he was very tired but that he had enjoyed greatly the trip downtown.

When the young biologist, Dr. Ballard, began to show interest in our daughter Elizabeth, this induced a corresponding interest, on our part, in him.

When he turns briefly to literary style, in the Third Book, he again looks to the effect on the audience.

When Bonds hit his 755th home run, Selig refused to applaud Bonds ' accomplishment, instead choosing to keep his hands in his pockets and have a look of disdain on his face.

When choosing a set of shells, a jazz drummer may want smaller maple shells, while a rock drummer may want larger birch shells.

When choosing a bass with a fifth string, the player must decide between adding a higher or lower-tuned string.

When these coordinates are realized by choosing datum points and fixing a geodetic datum, ISO uses the terminology coordinate reference system, while IERS speaks of a reference frame.

When choosing which type of pasta and sauce to serve together, there is a general rule that must be observed.

When it was first discovered, scientists estimated that the largest Quetzalcoatlus fossils came from an individual with a wingspan as large as 15. 9 meters ( 52. 2 feet ), choosing the middle of three extrapolations from the proportions of other pterosaurs that gave an estimate of 11, 15. 5 and 21 meters respectively ( 36 feet, 50. 85 feet, 68. 9 feet ).

When Jane died in 1511, More remarried almost immediately, choosing as his second wife a rich widow named Alice Middleton.

When State Legislatures selected Senators, if Congress had been able to prescribe the place for choosing Senators, it could have in effect told each State where its state capital must be located.

* When replacing appliances, choosing more energy efficient appliances ( A + rated machines to the EU environmental rating are preferred )

When the county was formed, a dispute arose about naming it after Andrew Jackson or John Adams ; the conflict was ended by choosing the name Orleans.

When choosing plants to divide, ensure that they are strong healthy specimens with no signs of rust or mildew.

When making a difficult decision, there are always aspects of the rejected choice that one finds appealing and these features are dissonant with choosing something else.

When Soap premiered on September 13, 1977, 18 out of 195 ABC affiliates had refused to air the program with others choosing to broadcast it after 11PM.

When choosing a mate, young birds will most often select a mate that resembles their parents ' coloring.

When choosing between $ 100 or $ 110 a day later, individuals may want to wait a day for an extra $ 10.

When choosing three vectors that must be at right angles to each other, there are two distinct solutions, so when expressing this idea in mathematics, one must remove the ambiguity of which solution is meant.

When the harvest-time came, and a sharp increase in demand for the use of the olive presses outstripped supply, he sold his future use contracts of the olive presses at a rate of his choosing, and made a large quantity of money.

When choosing members for the band, Reyes approached Jesse Lacey, whose band The Rookie Lot had just broken up, to play guitar and sing.

When it comes to choosing their victims serial killers do not go back to the person who caused the humiliation.

When choosing the correct management qualification to study it is important to first choose the correct level of qualification, which will largely be driven by experience and previous study.

When the experimental conditions were reversed, rewarding bees for choosing the inner passage marked with a symbol that was different from the entrance symbol, the bees again learned to choose the correct path.

When creating a new team, one is given the option of choosing its main strength ( for example: defense, running, batting, balanced, etc .).

When Merton became keeper in 1999, the rules were very straightforward, the conditions for choosing a bonus item or releasing an item were relaxed, the music removed, and the conveyor belt replaced by an elevated trapdoor.

When Seventh District Congressman Don Sundquist did not run for re-election in 1994 ( choosing instead to wage an ultimately successful campaign for governor ), Bryant won the Republican primary for the district.