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The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008.
The lemon, like many other cultivated Citrus species, is a hybrid, in its case of the citron and the bitter orange. [5] [6] The lemon is a hybrid of the citron and the bitter orange. [6] Taxonomic illustration by Franz Eugen Köhler, 1897 . Lemons were most likely first grown in northeast India. [7] The origin of the word lemon may be Middle ...
Interactive Forms is a mechanism to add forms to the PDF file format. PDF currently supports two different methods for integrating data and PDF forms. Both formats today coexist in the PDF specification: [37] [52] [53] [54] AcroForms (also known as Acrobat forms), introduced in the PDF 1.2 format specification and included in all later PDF ...
Lemons, pomelos, and sour oranges were introduced to the Mediterranean by Arab traders around the 10th century CE. Sweet oranges were brought to Europe by the Genoese and Portuguese from Asia during the 15th to 16th century. Mandarins were not introduced until the 19th century. [18] [19] [20] Oranges were introduced to Florida by Spanish colonists.
The Portuguese "Limoneira" means lemon grove or lemon farm which was their principal crop. [11] The year 1895 was a milestone for the company when it planted 690 orange trees, its first non-lemon product. By 1898 the company had nearly 50,000 trees, consisting of: 32,000 lemon trees, 3,000 grapefruit trees and 12,000 orange trees. [12]
Initially, many citrus types were identified and named by individual taxonomists, resulting in a large number of identified species: 870 by a 1969 count. [18] Some order was brought to citrus taxonomy by two unified classification schemes, those of Chōzaburō Tanaka and Walter Tennyson Swingle, that can be viewed as extreme alternative visions of the genus.
The title of Lemon Capital of the World has been give to these places, for growing large amounts of lemons: South Riverside Land and Water Company now Corona, California . (1887 to 1980s).
2004: First podcast, invented by Adam Curry and Dave Winer, is a program made available in digital format for download over the Internet and it usually features one or more recurring hosts engaged in a discussion about a particular topic or current event. [543] [544] [545] 2005: YouTube, the first popular video-streaming site, was founded