Oak vs Tbilisi

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An oak is a tree or shrub in the genus Quercus (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably Lithocarpus (stone oaks), as well as in those of unrelated species such as Grevillea robusta (silky oaks) and the Casuarinaceae (she-oaks). The genus Quercus is native to the Northern Hemisphere, and includes deciduous and evergreen species extending from cool temperate to tropical latitudes in the Americas, Asia, Europe, and North Africa. North America contains the largest number of oak species, with approximately 90 occurring in the United States, while Mexico has 160 species of which 109 are endemic. The second greatest center of oak diversity is China, which contains approximately 100 species.

Oaks have spirally arranged leaves, with lobate margins in many species; some have serrated leaves or entire leaves with smooth margins. Many deciduous species are marcescent, not dropping dead leaves until spring. In spring, a single oak tree produces both male flowers (in the form of catkins) and small female flowers, meaning that the trees are monoecious. The fruit is a nut called an acorn or oak nut borne in a cup-like structure known as a cupule; each acorn contains one seed (rarely two or three) and takes 6–18 months to mature, depending on their species. The acorns and leaves contain tannic acid, which helps to guard from fungi and insects. The live oaks are distinguished for being evergreen, but are not actually a distinct group and instead are dispersed across the genus.

Source: Wikipedia

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Tbilisi (English: tə-bih-LEE-see, tə-BIL-ih-see; Georgian: თბილისი [tʰbilisi] (listen)), in some countries also still known by its pre-1936 international designation, Tiflis ( TIF-lis), is the capital and the largest city of Georgia, lying on the banks of the Kura River with a population of approximately 1.5 million people. Tbilisi was founded in the 5th century AD by Vakhtang I of Iberia, and since then has served as the capital of various Georgian kingdoms and republics. Between 1801 and 1917, then part of the Russian Empire, Tbilisi was the seat of the Imperial Viceroy, governing both Southern and Northern Caucasus. Because of its location on the crossroads between Europe and Asia, and its proximity to the lucrative Silk Road, throughout history Tbilisi was a point of contention among various global powers.

The city's location to this day ensures its position as an important transit route for energy and trade projects. Tbilisi's history is reflected in its architecture, which is a mix of medieval, neoclassical, Beaux Arts, Art Nouveau, Stalinist and the Modern structures. Historically, Tbilisi has been home to people of multiple cultural, ethnic, and religious backgrounds, though it is overwhelmingly Eastern Orthodox Christian. Its notable tourist destinations include cathedrals Sameba and Sioni, Freedom Square, Rustaveli Avenue and Agmashenebeli Avenue, medieval Narikala Fortress, the pseudo-Moorish Opera Theater, and the Georgian National Museum. The climate in Tbilisi mostly ranges from 20 to 32 °C (68 to 90 °F) in the summer and 7 to −1 °C (45 to 30 °F) in the winter.

Source: Wikipedia