To be announced - Wikipedia
To be announced (TBA) is a placeholder term used very broadly in event planning to indicate that although something is scheduled or expected to happen, a particular aspect of it remains to be fixed or set. Other versions of the term include to be confirmed (TBC) and to be determined, discussed, defined, decided, declared, or done (TBD). These phrases are similar, but may be used for different degr
Exotic sphere - Wikipedia
In an area of mathematics called differential topology, an exotic sphere is a differentiable manifold M that is homeomorphic but not diffeomorphic to the standard Euclidean n-sphere. That is, M is a sphere from the point of view of all its topological properties, but carrying a smooth structure that is not the familiar one (hence the name "exotic"). The first exotic spheres were constructed by Joh
Emoticon - Wikipedia
Cover of the French magazine Le Charivari, text of a legal ruling against it in the shape of a pear, 1834 In 1648, poet Robert Herrick wrote, "Tumble me down, and I will sit Upon my ruins, (smiling yet:)." Herrick's work predated any other recorded use of brackets as a smiling face by around 200 years. However, experts doubted the inclusion of the colon in the poem was deliberate and if it was mea
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