If precise dates are required, the beginning may be set in 802 AD, when the founder of the Khmer Empire, Jayavarman II pronounced himself universal monarch ( chakravartin ) and declared independence from Java, and the end may be set in 1431 AD, when Thai invaders from the kingdom of Ayutthaya sacked Angkor and caused the Khmer elite to migrate to Phnom Penh.

Geologists can also give precise absolute dates to geologic events.

A large advance in geology in the advent of the 20th century was the ability to give precise absolute dates to geologic events through radioactive isotopes and other methods.

It is difficult to assign any precise dates to his writings because he tended to revise them throughout his life.

) do not allow very precise dating, even augmented by the few existing C-14 dates due to the tolerance inherent in these.

The moon, as another extraterrestrial body that has not undergone plate tectonics and that has no atmosphere, provides quite precise age dates from the samples returned from the Apollo missions.

The precise division of Francia into a Neustrian, Austrasian, and Burgundian kingdom dates only from the late sixth century, so earlier kings who ruled from Soissons or Paris are here excluded.

As there are no precise dates for when the Millennial generation starts and ends, commentators have used birth dates ranging somewhere from the mid-1970s to the early 2000s ( decade ).

As with most periodizations of history, however, the precise dates chosen vary.

Regardless of the precise dates used to define its beginning and end points, the early modern period is generally agreed to have comprised the Renaissance, the Reformation, the Scientific Revolution, and the Enlightenment.

There are no precise dates for when Generation Y starts and ends.

The precise dates and means of formation of the lordships varied, as did their size.

The precise date of his birth is uncertain ; birth dates of 1441 – 1445 are proposed.

The mound's passage is shorter than the long entryways of monuments like Newgrange, which makes it less precise in providing alignments with the Sun ; still, Martin Brennan, in The Stones of Time, states that the daily changes in the position of a 13-foot ( 4-m ) long sunbeam are more than adequate to determine specific dates.

Most accounts have this happening between 1973 and 1977 but precise dates are not known.

In the two proceeding centuries there are no precise dates in its history.

The history of such software is usefully summarized in the SCORM 2004 2nd edition Overview ( section 1. 3 ), unfortunately, however, without precise dates.

Although he was born and died in Siena, the dates of his life are not precise.

Based on his examination of the stanza forms, Keats biographer Andrew Motion thinks " Ode on Indolence " was written after " Ode to Psyche " and " Ode to a Nightingale ", although he admits there is no way to be precise about the dates.

The precise dates appears to have varied considerably however, and in some cases, quite significantly, the Ember Weeks lost their connection with the Christian festivals altogether.

Its present name of Sophia dates from the Middle Ages, though the precise date of its first use cannot be assigned ; in the sixteenth century Sredetz and Sophia were used simultaneously.

As the Mossi people's history has been kept by oral tradition, it is impossible to assign precise dates for the period before colonization.

Though the precise date of the Exeter Codex's inscription is still unknown, it may generally be described as one of the great works of the English Benedictine revival of the tenth century, and proposed dates of authorship generally range from 960 to 990.

He also drew precise crisp spots, which he sold to various literary and artistic journals, The New Yorker, for instance, or Esquire.

Wedge-shaped polycrystals were identified by transmission electron microscopy to grow out of the amorphous phase only after the latter has exceeded a certain thickness, the precise value of which depends on deposition temperature, background pressure and various other process parameters.

The term ruach ha-kodesh ( Hebrew: רוח הקודש, " holy spirit " also transliterated ruah ha-qodesh ) occurs once in Psalm 51: 11 and also twice in the Book of Isaiah Those are the only three times that the precise phrase " ruach hakodesh " is used in the Hebrew Scriptures, although the noun ruach ( רוח, literally " breath " or " wind ") in various combinations, some referring to God's " spirit ", is used often.

* A construct unique to US daytime serials is the format where the action will cut between various conversations, returning to each at the precise moment it was left.

As such, the short story is defined relative to other prose forms in various traditions and styles, with the precise length of each story determined by each author's artistic intent or the requirements of the plot or depiction.

While these are all associated with medieval hunting, over time various dog breeds were selected for very precise tasks during the hunt, reflected in such names as pointer and setter.

In planting, wider rows ( generally 75 cm ( 30 in ) or more ) are used, and the intent is to have precise, even spacing between individual seeds in the row ; various mechanisms have been devised to count out individual seeds at exact intervals.

In the most traditional versions, various sizes of natural gourds are attached below the keys to act as resonators ; in more sophisticated versions carved wooden resonators are substituted, allowing for more precise tuning of pitch.

The precise notions of symmetry have various measures and operational definitions.

Ximenean rules are very precise in terms of grammar and syntax, especially as regards the indicators used for various methods of wordplay.

Its various factions and races include the Imperium of Man, a decentralized yet totalitarian interstellar empire that has ruled the vast majority of humanity for millennia, the Orks ( similar to Warhammer Fantasy Orcs ), the Eldar ( similar to Elves in Warhammer Fantasy Battle ), and Daemons ( very similar in both universes, although the precise natures of their creation and existence vary slightly ), among others.

Especially in Medieval Latin, præfectus was used to refer to various officers — administrative, military, judicial, etc .— usually alongside a more precise term in the vernacular ( such as Burggraf ).

In practice, there are few securities with precise characteristics, and the application of this valuation approach is subject to various qualifications and modifications.

Architecture and objects synthesized various styles, both Iranian and Syrian, sometimes rendering precise attributions difficult.

Instead, a precise metering system draws the detergents and wash additives directly from large liquid-chemical storage barrels and injects them as needed into the various wash and rinse cycles.

Although the advent of modern refrigeration — including kimchi refrigerators specifically designed with precise controls to keep different varieties of kimchi at optimal temperatures at various stages of fermentation — has made this seasonality unnecessary, Koreans continue to consume kimchi according to traditional seasonal preferences.

The classifications used in taxonomy attempt to represent the precise interrelatedness of the various taxa.

He served under his brother-in-law Count Gustav Horn af Björneborg in the Thirty Years ' War from 1632, and was subsequently employed by his father in various diplomatic missions, though his instructions were always so precise and minute that he was little more than the executor of the Chancellor's wishes.

* Though it is mentioned in various constitutional documents, the precise nature of the office of the Prime Minister operates mostly according to understood, uncodified British conventions.

There are various reasons for this: drums are usually the rhythm leaders, making it easier for musicians recording later tracks to keep to the common beat of the drums and the precise attack of drum sounds.

More precise information is provided by various ergodic theorems which assert that, under certain conditions, the time average of a function along the trajectories exists almost everywhere and is related to the space average.

This can be made precise in various contexts with slightly different ways of formulation.

Seljuq architecture synthesized various styles, both Iranian and Syrian, sometimes rendering precise attributions difficult.

Blunt industrial needles Disposable plastic syringes equipped with unbeveled blunt-tip needles are often used in industry to apply precise amounts of lubricants, adhesives, and various other liquids and pastes.