A calendar is a system of organizing days. This is done by giving names to periods of time, typically days, weeks, months and years. A date is the designation of a single, specific day within such a system. A calendar is also a physical record of such a system. A calendar can also mean a list of planned events, such as a court calendar or a partly or fully chronological list of documents, such as a calendar of wills.
A century is a period of 100 years. Centuries are numbered ordinally in English and many other languages. The word century comes from the Latin centum, meaning one hundred. Century is sometimes abbreviated as c.
The Julian calendar, proposed by Julius Caesar in AUC 708, was a reform of the Roman calendar. It took effect on 1 January AUC 709 , by edict. It was designed with the aid of Greek mathematicians and astronomers such as Sosigenes of Alexandria.
The first millennium of the anno Domini or Common Era was a millennium spanning the years 1 to 1000. The world population rose more slowly than during the preceding millennium, from about 200 million in the year AD 1 to about 300 million in the year 1000.
Chronology is the science of arranging events in their order of occurrence in time. Consider, for example, the use of a timeline or sequence of events. It is also "the determination of the actual temporal sequence of past events".
This is a timeline of Chinese history, comprising important legal and territorial changes and political events in China and its predecessor states. To read about the background to these events, see History of China. See also the list of Chinese monarchs, Chinese emperors family tree, dynasties in Chinese history and years in China.
Dating creation is the attempt to provide an estimate of the age of Earth or the age of the universe as understood through the origin myths of various religious traditions. Various traditional beliefs held that Planet Earth, or the entire Universe, was brought into being in a grand creation event by one or more gods. Once these cultures developed calendars, many began to ponder the question of precisely how long ago this event happened.
A millennium is a period of one thousand years, sometimes called a kiloannum (ka), or kiloyear (ky). Sometimes, the word is used specifically for periods of a thousand years that begin at the starting point of the calendar in consideration and at later years that are whole number multiples of a thousand years after the start point. The term can also refer to an interval of time beginning on any date. Millennia sometimes have religious or theological implications.
An Olympiad is a period of four years associated with the Olympic Games of the Ancient Greeks. Although the Ancient Olympic Games were established during Archaic Greece, it was not until the Hellenistic period, beginning with Ephorus, that the Olympiad was used as a calendar epoch. Converting to the modern BC/AD dating system, the first Olympiad began in the summer of 776 BC and lasted until the summer of 772 BC, when the second Olympiad would begin with the commencement of the next games. Thus, Olympiad N for N less than 195 started in the year BC and ended four years later. For N greater than 194, Olympiad N started in AD and ended four years later.
A calendar era is the period of time elapsed since one epoch of a calendar and, if it exists, before the next one. For example, the Gregorian calendar numbers its years in the Western Christian era.
A decade is a period of 10 years. The word is derived from the Ancient Greek: δεκάς, romanized: dekas, which means a group of ten. Decades may describe any ten-year period, such as those of a person's life, or refer to specific groupings of calendar years.
The history of communication technologies have evolved in tandem with shifts in political and economic systems, and by extension, systems of power. Communication can range from very subtle processes of exchange, to full conversations and mass communication. The history of communication itself can be traced back since the origin of speech circa 500,000 BCE. The use of technology in communication may be considered since the first use of symbols about 30,000 years BCE. Among the symbols used, there are cave paintings, petroglyphs, pictograms and ideograms. Writing was a major innovation, as well as printing technology and, more recently, telecommunications and the Internet.
The Holocene calendar, also known as the Holocene Era or Human Era (HE), is a year numbering system that adds exactly 10,000 years to the currently dominant numbering scheme, placing its first year near the beginning of the Holocene geological epoch and the Neolithic Revolution, when humans transitioned from a hunter-gatherer lifestyle to agriculture and fixed settlements. The current year by the Gregorian calendar, AD 2021, is 12021 HE in the Holocene calendar. The HE scheme was first proposed by Cesare Emiliani in 1993.
Oceanic art or Oceanian art comprises the creative works made by the native people of the Pacific Islands and Australia, including areas as far apart as Hawaii and Easter Island. Specifically it comprises the works of the two groups of people who settled the area, though during two different periods. They would in time however, come to interact and together reach even more remote islands. The area is often broken down into four separate regions: Micronesia, Melanesia, Polynesia and Australia. Australia, along with interior Melanesia (Papua), are populated by descendants of the first waves of human migrations into the region by Australo-Melanesians. Micronesia, Island Melanesia, and Polynesia, on the other hand, are descendants of later Austronesian voyagers who intermixed with native Australo-Melanesians; mostly via the Neolithic Lapita culture. All of the regions in later times would be greatly affected by western influence and colonization. In more recent times, the people of Oceania have found a greater appreciation of their region's artistic heritage.
The following is a list of timeline articles:
This is a list of notable deaths, organized by year. New deaths articles are added to their respective month, and then linked here.
The Puranic chronology is a timeline of Hindu history based on the Mahabharata, the Ramayana and the Puranas. Two central dates are the Mahabharata War, which according to this chronology happened at 3534 BCE, and the start of the Kali Yuga, which according to this chronology started at 3508 BCE. The Puranic chronology is referred to by proponents of Indigenous Aryans to propose an earlier dating of the Vedic period, and the spread of Indo-European languages out of India, arguing that "the Indian civilization must be viewed as an unbroken tradition that goes back to the earliest period of the Sindhu-Sarasvati tradition ."