All articles A–Z

Spanish–Moro conflict

Spanish–Moro conflict: intermittent wars from 1578 to 1898 between Spanish colonial forces and the Muslim sultanates of Mindanao and Sulu; the Moros were never fully conquered or Christianized before Spain ceded the Philippines in 1898.

Spanish–Ottoman Wars

The Spanish–Ottoman Wars were the Habsburg-Spanish and Ottoman empires' struggle for Mediterranean hegemony from the 1530s to 1574, fought with galleys and corsairs, climaxing at Lepanto (1571) and ending with the 1578 truce.

Oct 22, 2026

Spanish–Sulu War

The Spanish–Sulu War, the sixth and final stage of the Spanish–Moro conflict, was fought between Spain and the Sultanate of Sulu from the 1851 invasion of Sulu until Spanish rule ended in 1899.

Spanking

Spanking is a form of corporal punishment in which the hand is used to slap a child on the buttocks, typically by parents for discipline.

Spanky and Our Gang

Spanky and Our Gang, an American sunshine pop and folk-rock group formed in Chicago in 1966, led by Elaine "Spanky" McFarlane; hits included "Sunday Will Never Be the Same" (number 9, 1967) and "Lazy Day."

Spanning tree

A spanning tree of a connected graph is a subgraph including every vertex that is itself a tree, connected and acyclic, and every connected graph has at least one.

Spanning tree coverage

Spanning tree coverage (STC) is a robot coverage path planning method that traces a loop around a spanning tree of grid cells, introduced by Gabriely and Rimon in 2001.

Spanning Tree Protocol

The Spanning Tree Protocol (STP) is an IEEE 802.1D network protocol that lets Ethernet switches block redundant links to prevent loops, invented by Radia Perlman in 1985.

Spanx

Spanx: American shapewear and apparel company founded by Sara Blakely in Atlanta on February 15, 2000 with $5,000; invented footless body-shaping pantyhose; Blackstone bought a majority stake in 2021 at a $1.2 billion valuation.

Spao

Spao is a three-player abstract strategy ball-stacking game by Néstor Romeral Andrés for the Shibumi set (4x4 holes board, three ball colours), scoring by multiplying connected group sizes; distinct from the Korean clothing brand SPAO.

Spar (retailer)

Spar, originally founded as Despar, is a voluntary food retail chain started by wholesaler Adriaan van Well in the Netherlands in 1932, with about 13,600 stores in 50 countries.

Sparata

Sparata (Спарата) was a Roman roadside horse-changing station on the Via Militaris between Serdica and Philippopolis, identified with modern Vakarel, Bulgaria, first recorded in 333–334 AD.

SPARC

SPARC (Scalable Processor ARChitecture) is a RISC instruction set architecture formulated at Sun Microsystems in 1985, known for register windows and licensed royalty free by SPARC International since 1989.

SPARC (gene)

SPARC (secreted protein acidic and rich in cysteine), also called osteonectin or BM-40, is a matricellular calcium-binding glycoprotein gene on 5q31-q33 encoding a 303-amino-acid collagen-binding protein involved in matrix assembly, wound healing, and cancer prognosis.

SPARC (robotics partnership)

SPARC, the Partnership for Robotics in Europe, was a public-private partnership on robotics between the European Commission and euRobotics under Horizon 2020, running from 2014 to 2020.

Oct 22, 2026

SPARC first-plasma campaign

The SPARC first-plasma campaign is the initial operating phase of SPARC, a compact high-field tokamak by Commonwealth Fusion Systems in Devens, Massachusetts, aiming for net fusion energy gain.

SPARC64 V

SPARC64 V is a 64-bit SPARC V9 enterprise server microprocessor developed by Fujitsu and announced in 2002 as the engine of its PRIMEPOWER UNIX servers.

SPARCstation 1

The SPARCstation 1, code named Campus and sold as the Sun 4/60, was a desktop UNIX workstation introduced by Sun Microsystems in April 1989 as the first SPARCstation.

Spare (memoir)

Spare is Prince Harry's 2023 memoir, ghostwritten by J.R. Moehringer, published by Penguin Random House on 10 January 2023; it sold 1.4 million copies on day one, the fastest-selling non-fiction book ever.

Spare Parts (2015 film)

Spare Parts (2015), directed by Sean McNamara, dramatizes the 2004 Carl Hayden High School robotics team that beat MIT with an $800 underwater robot named Stinky, based on Joshua Davis's WIRED article La Vida Robot.

Sparfloxacin

Sparfloxacin, sold as Zagam, is a synthetic broad-spectrum fluoroquinolone antibiotic developed by Dainippon Pharmaceutical, approved by the FDA in 1996 and later withdrawn from the market.

Sparganium

Sparganium (bur-reed) is a genus of about 14-20 aquatic monocot species in Typhaceae, native to the temperate Northern Hemisphere, with unisexual spherical flower heads and floating or emergent growth forms.

Sparganosis

Sparganosis, also called plerocercoid infection, is a zoonotic disease from Spirometra tapeworm larvae (spargana) acquired by eating raw frogs or snakes, contaminated water, or poultices; larvae live up to 20 years in humans, most cases occur in East and Southeast Asia, and surgery is the primary treatment.

Sep 29, 2026

Sparging (chemistry)

Sparging is a sample-preparation technique in analytical chemistry that bubbles gas through a liquid to remove dissolved oxygen or transfer volatile compounds into a gas stream for detection.

Spargo

Spargo is a 2011 abstract board game by Cameron Browne, a 4x4 stacking version of Margo and 3D extension of Go for the Shibumi set, where captured pieces supporting enemy pieces survive as zombies.