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Incandescent bulbs have been replaced in many applications by other types of electric light, such as fluorescent lamps, compact fluorescent lamps (CFL), cold cathode fluorescent lamps (CCFL), high-intensity discharge lamps, and light-emitting diode lamps (LED). Some jurisdictions, such as the European Union, China, Canada and United States, are in the process of phasing out the use of incandescent light bulbs while others, including Colombia, Mexico, Cuba, Argentina, Brazil and Australia, have prohibited them already.
What does the acronym LED refer to?
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The answer: light-emitting diode

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Immigration of Czechs from Europe to the United States occurred primarily from 1848 to 1914. Czech is a Less Commonly Taught Language in U.S. schools, and is taught at Czech heritage centers. Large communities of Czech Americans live in the states of Texas, Nebraska and Wisconsin. In the 2000 United States Census, Czech was reported as the most-common language spoken at home (besides English) in Valley, Butler and Saunders Counties, Nebraska and Republic County, Kansas. With the exception of Spanish (the non-English language most commonly spoken at home nationwide), Czech was the most-common home language in over a dozen additional counties in Nebraska, Kansas, Texas, North Dakota and Minnesota. As of 2009, 70,500 Americans spoke Czech as their first language (49th place nationwide, behind Turkish and ahead of Swedish).
Czechs immigrated from Europe to the U.S. primary from 1848 to when?
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The answer: 1914

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Upon being confirmed in 1966, she adopted Veronica as a confirmation name. She was raised in the Detroit suburbs of Pontiac and Avon Township (now Rochester Hills). Months before her mother died of breast cancer, Madonna noticed changes in her behavior and personality, although she did not understand the reason. Her mother was at a loss to explain her medical condition, and often began to cry when Madonna questioned her about it. Madonna later acknowledged that she had not grasped the concept of her mother dying.
Where was Madonna raised?
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The answer: Detroit suburbs of Pontiac and Avon Township

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The centuries-long geopolitical and ideological rivalry between Safavid Iran and the neighboring Ottoman Empire, led to numerous OttomanPersian Wars. The Safavid Era peaked in the reign of Abbas the Great, 15871629, surpassing their Ottoman arch rivals in strength, and making the empire a leading hub in Western Eurasia for the sciences and arts. The Safavid Era saw the start of mass integration from Caucasian populations into new layers of the society of Iran, as well as mass resettlement of them within the heartlands of Iran, playing a pivotal role in the history of Iran for centuries onwards. Following a gradual decline in the late 1600s and early 1700s, which was caused by the internal conflicts, the continuous wars with the Ottomans, and the foreign interference (most notably the Russian interference), the Safavid rule was ended by the Pashtun rebels who besieged Isfahan and defeated Soltan Hosein in 1722.
Safavid Iran peaked during whose reign?
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The answer:
Abbas the Great