Catholicism
According to canon law, this is the minimum age required for valid episcopal ordination in the Latin Church.
What is 35 years old?
This color results from combining all wavelengths of visible light in equal intensity.
What is white?
The “Filioque” controversy centers on this phrase added to the Nicene Creed in the Latin Church.
What is “and the Son”?
On Johannes Itten’s color wheel, these pairs of colors sit opposite one another and maximize visual contrast.
What are complementary colors?
This 13th-century papal document formally established the doctrine of transubstantiation using Aristotelian terminology.
What is Fourth Lateran Council (1215)?
This term describes colors that lack hue and are defined only by lightness, such as black, white, and gray.
What are achromatic colors?
This encyclical of Leo XIII is considered foundational for modern Catholic social teaching, especially on labor rights.
What is Rerum Novarum?
This color model, based on light rather than pigment, is used in digital screens and additive color mixing.
What is RGB?
This early Christian document, likely composed in the late first century, outlines moral instruction and early liturgical practices.
What is the Didache?
The color wheel commonly taught in art classes is traditionally attributed to this 17th-century scientist.
Who is Isaac Newton?