Sasanian EmpireThe Sasanian Empire (səˈsɑːniən,_səˈseɪniən), officially known as Eranshahr ("Land/Empire of the Iranians"), was the last Iranian empire before the early Muslim conquests of the 7th–8th centuries AD. Named after the House of Sasan, it endured for over four centuries, from 224 to 651 AD, making it the longest-lived Persian imperial dynasty. The Sasanian Empire succeeded the Parthian Empire, and re-established the Persians as a major power in late antiquity alongside its neighbouring arch-rival, the Roman Empire (after 395 the Byzantine Empire).
Justinian IJustinian I (dʒʌˈstɪniən, ; Iustinianus, juːstiːniˈaːnʊs; Ioustinianós, i.ustini.aˈnos; 482 - 14 November 565), also known as Justinian the Great, was the Eastern Roman emperor from 527 to 565. His reign is marked by the ambitious but only partly realized renovatio imperii, or "restoration of the Empire". This ambition was expressed by the partial recovery of the territories of the defunct Western Roman Empire. His general, Belisarius, swiftly conquered the Vandal Kingdom in North Africa.
MosaicA mosaic is a pattern or image made of small regular or irregular pieces of colored stone, glass or ceramic, held in place by plaster/mortar, and covering a surface. Mosaics are often used as floor and wall decoration, and were particularly popular in the Ancient Roman world. Mosaic today includes not just murals and pavements, but also artwork, hobby crafts, and industrial and construction forms. Mosaics have a long history, starting in Mesopotamia in the 3rd millennium BC.
ChersonesusChersonesus (Khersónēsos; Chersonesus; modern Russian and Ukrainian: Херсоне́с, Khersones; also rendered as Chersonese, Chersonesos, contracted in medieval Greek to Cherson Χερσών; Old East Slavic: Корсунь, Korsun) is an ancient Greek colony founded approximately 2,500 years ago in the southwestern part of the Crimean Peninsula. Settlers from Heraclea Pontica in Bithynia established the colony in the 6th century BC. The ancient city is located on the shore of the Black Sea on the outskirts of present-day Sevastopol on the Crimean Peninsula, where it is referred to as Khersones.
Labour economicsLabour economics, or labor economics, seeks to understand the functioning and dynamics of the markets for wage labour. Labour is a commodity that is supplied by labourers, usually in exchange for a wage paid by demanding firms. Because these labourers exist as parts of a social, institutional, or political system, labour economics must also account for social, cultural and political variables. Labour markets or job markets function through the interaction of workers and employers.
CalabriaCalabria is a region in Southern Italy. It is a peninsula bordered by Basilicata to the north, the Ionian Sea to the east, the Strait of Messina to the southwest, which separates it from Sicily, and the Tyrrhenian Sea to the west. It has almost 2 million residents across a total area of approximately . Catanzaro is the region's capital. Calabria is the birthplace of the name Italy, given to it by the Ancient Greeks who settled in this land starting from the 8th century BC.
CharlemagneCharlemagne (ˈʃɑːrləmeɪn,_ˌʃɑːrləˈmeɪn ) or Charles the Great (Carolus Magnus, Frankish: Karl; 2 April 747 – 28 January 814), a member of the Carolingian dynasty, was King of the Franks from 768, King of the Lombards from 774, and was crowned as the Emperor of the Romans by the Papacy in 800. Charlemagne succeeded in uniting the majority of western and central Europe and was the first recognized emperor to rule from western Europe after the fall of the Western Roman Empire approximately three centuries earlier.
Greek fireGreek fire was an incendiary weapon used by the Eastern Roman Empire beginning AD 672. Used to set enemy ships on fire, it consisted of a combustible compound emitted by a flame-throwing weapon. Some historians said it could be ignited on contact with water, and was probably based on naphtha and quicklime. The Byzantines typically used it in naval battles to great effect, as it could continue burning while floating on water.
Supply chain attackA supply chain attack is a cyber-attack that seeks to damage an organization by targeting less secure elements in the supply chain. A supply chain attack can occur in any industry, from the financial sector, oil industry, to a government sector. A supply chain attack can happen in software or hardware. Cybercriminals typically tamper with the manufacturing or distribution of a product by installing malware or hardware-based spying components. Symantec's 2019 Internet Security Threat Report states that supply chain attacks increased by 78 percent in 2018.
Software regressionA software regression is a type of software bug where a feature that has worked before stops working. This may happen after changes are applied to the software's source code, including the addition of new features and bug fixes. They may also be introduced by changes to the environment in which the software is running, such as system upgrades, system patching or a change to daylight saving time. A software performance regression is a situation where the software still functions correctly, but performs more slowly or uses more memory or resources than before.
