The federal government of the United States has mandated that "in data collection and presentation, federal agencies are required to use a minimum of two ethnicities: 'Hispanic or Latino' and 'Not Hispanic or Latino'." The Census Bureau defines "Hispanic or Latino" as "a person of Cuban, Mexican, Puerto Rican, South or Central American or other Spanish culture or origin regardless of race." For discussion of the meaning and scope of the Hispanic or Latino ethnicity, see the Hispanic and Latino Americans and Racial and ethnic demographics of the United States articles.
How many ethnicities or federal agencies required to use in data collection?
a minimum of two

To define light source color properties, the lighting industry predominantly relies on two metrics, correlated color temperature (CCT), commonly used as an indication of the apparent "warmth" or "coolness" of the light emitted by a source, and color rendering index (CRI), an indication of the light source's ability to make objects appear natural.
What does CCT stand for?
correlated color temperature

Buddhism may have spread only slowly in India until the time of the Mauryan emperor Ashoka, who was a public supporter of the religion. The support of Asoka and his descendants led to the construction of more stupas (Buddhist religious memorials) and to efforts to spread Buddhism throughout the enlarged Maurya empire and even into neighboring landsparticularly to the Iranian-speaking regions of Afghanistan and Central Asia, beyond the Mauryas' northwest border, and to the island of Sri Lanka south of India. These two missions, in opposite directions, would ultimately lead, in the first case to the spread of Buddhism into China, and in the second case, to the emergence of Theravada Buddhism and its spread from Sri Lanka to the coastal lands of Southeast Asia.
What does stupas mean in English?
Buddhist religious memorials