Metal tiers reflect how costs are split between you and your insurer.© grandeduc/stock.adobe.com; Photo illustration Encyclopædia Britannica, IncIf you don’t get health insurance through a job, there’s a good chance you’re shopping on the health insurance marketplace (aka Obamacare). The marketplace was established under the Patient Protection and Affordable Care Act (ACA) to let individuals purchase plans from private...

　　 　　Gold glitters, silver shines, and their balance shifts.© vladk213/stock.adobe.com, © Peter Hermes Furian/stock.adobe.com; Photo illustration Encyclopædia Britannica, IncGold and silver have been used as both monetary metals and stores of value for well over two millennia. Although you won’t see them change hands at a checkout counter today, their roles haven’t entirely faded. Investors still turn to these precious...

　　 　　Indira Nath Indian physician Indira Nath receiving the L'Oreal-UNESCO Award For Women in Science in Paris, France, on March 6, 2002. (more) Indian Women in STEM From independence to the present Written by Anoushka Pant Anoushka Pant holds a degree in elementary education, with a focus on mathematics, education, and psychology, from Miranda House, University of Delhi. Anoushka PantAll...

　　 　　From zero to everywhere Linkin Park members Brad Delson, Joe Hahn, Rob Bourdon, Mike Shinoda, and Chester Bennington. (more) Linkin Park American rock band Also known as: Hybrid Theory, Xero Written by Fred Frommer Fred Frommer is a sports historian, author, and writer who has written for a host of national publications. Fred FrommerAll Fact-checked by Britannica Editors Encyclopaedia...

　　 　　February 22, 1980: The biggest upset in Olympic history? (more) Today in History—February 22: A Cold War Showdown on Ice Written by Amy Tikkanen Amy Tikkanen is Managing Editor at Encyclopaedia Britannica. Amy Tikkanen Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on...

　　 　　Today in History is a daily newsletter from Britannica. (more) Today in History—February 23: The Expedition That Chased Cities of Gold Written by Michele Metych Michele Metych is the lead editor for Today in History at Encyclopædia Britannica. Michele Metych Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years...

　　 　　The sound of the sarod Indian classical musician Amjad Ali Khan performing in Allahabad (now Prayagraj), Uttar Pradesh, India, January 2016. (more) Amjad Ali Khan Indian musician and composer Also known as: Masoom Ali Khan, Sarod Samrat Written by Anoushka Pant Anoushka Pant holds a degree in elementary education, with a focus on mathematics, education, and psychology, from Miranda...

　　 　　Insurance coverage works best when you know the terms.© Africa Studio/stock.adobe.com, © Leo Lintang/stock.adobe.com; Photo illustration Encyclopædia Britannica, IncWhich do you find more confusing: reading your insurance policy or trying to decipher the jargon in an auto insurance claim or medical explanation of benefits (EOB) form? Deductible, co-pay, coinsurance, out-of-pocket maximum—sometimes the language is more painful than the fender...

　　 　　Jon Krakauer Writer and mountaineer Jon Krakauer, photographed in New York City in August 2015. (more) Jon Krakauer American writer and mountaineer Written by Laura Payne Laura Payne is a freelance writer whose work covers many topics. She is a former Wayne State University linguistics instructor. Laura Payne Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in...

　　 　　Today in History is a daily newsletter from Britannica. (more) Today in History—February 24: When the Church Invented Time Travel Written by Michele Metych Michele Metych is the lead editor for Today in History at Encyclopædia Britannica. Michele Metych Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of...

　　 　　Sophie Turner English actress Sophie Turner at Paris Fashion Week in March 2025. (more) Sophie Turner English actress Also known as: Sophie Belinda Turner Written by Fred Frommer Fred Frommer is a sports historian, author, and writer who has written for a host of national publications. Fred Frommer Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in...

　　 　　Population Registration Act A racial classification certificate of a South African, issued in 1978, that identifies the holder as a white person. Under South Africa's Population Registration Act, people were classified as white, Coloured, native (also called Bantu), or, later, Asian. (more) Population Registration Act South Africa [1950] Written by Amy McKenna Amy McKenna is a senior editor, primarily...