past

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past

[′past]
(relativity)
For an event in space-time, all events from which a signal could be emitted that could reach the event in question by traveling at speeds less than or equal to the speed of light.
References in classic literature ?
Every little caution that Marian and I practised towards her--every little remedy we tried, to strengthen and steady slowly the weakened, shaken faculties, was a fresh protest in itself against the risk of turning her mind back on the troubled and the terrible past.
At least it might have been thought that Anna would have confessed HER share in the past. Yet see what she says!
The object may be something past or future; it may be physical, not mental; it may be something abstract, like equality for example; it may be something imaginary, like a golden mountain; or it may even be something self-contradictory, like a round square.
He had been gazing at the red embers as intently as if his past life were all pictured there, or as if it were a prospect of the future world, when little Alice's voice aroused him.
"My friends," said he, "it is twenty minutes past ten.
It is this glamour of the past, I suppose, that makes old folk talk so much nonsense about the days when they were young.
They rode through the village of Rykonty, past tethered French hussar horses, past sentinels and men who saluted their colonel and stared with curiosity at a Russian uniform, and came out at the other end of the village.
There is much to be learned from the minor novelists and poets of the past about people's ways of thinking and feeling, but not much that the masters do not give you in better quality and fuller measure; and I should say, Read the old masters and let their schools go, rather than neglect any possible master of your own time.
And Esther Dudley fancied that as soon as the wide door should be flung open, all the pomp and splendor of by-gone times would pace majestically into the Province House, and the gilded tapestry of the past would be brightened by the sunshine of the present.
Into this second life Bulstrode's past had now risen, only the pleasures of it seeming to have lost their quality.
Don Quixote at once asked the landlord what this Master Pedro was, and what was the show and what was the ape he had with him; which the landlord replied, "This is a famous puppet-showman, who for some time past has been going about this Mancha de Aragon, exhibiting a show of the release of Melisendra by the famous Don Gaiferos, one of the best and best-represented stories that have been seen in this part of the kingdom for many a year; he has also with him an ape with the most extraordinary gift ever seen in an ape or imagined in a human being; for if you ask him anything, he listens attentively to the question, and then jumps on his master's shoulder, and pressing close to his ear tells him the answer which Master Pedro then delivers.
All property relations in the past have continually been subject to historical change consequent upon the change in historical conditions.