Aztecs were a Mesoamerican culture that flourished in central Mexico in the post-classic period from 1300 to 1521. The Aztec peoples included different ethnic groups of central Mexico, particularly those groups who spoke the Nahuatl language and who dominated large parts of Mesoamerica from the 14th to the 16th centuries. Aztec culture was organized into city-states (altepetl), some of which joined to form alliances, political confederations, or empires.[from wikipedea]

A marching band is a group in which instrumental musicians perform while marching, often for entertainment or competition. Instrumentation typically includes brass, woodwind, and percussion instruments. Most marching bands wear a uniform, often of a military style, that includes an associated school or organization's colors, name or symbol. Most high school marching bands, and some college marching bands, are accompanied by a color guard, a group of performers who add a visual interpretation to the music through the use of props, most often flags and rifles.[from wikipedia]

A banner can be a flag or other piece of cloth bearing a symbol, logo, slogan or other message. A flag whose design is the same as the shield in a coat of arms (but usually in a square or rectangular shape) is called a banner of arms. Also, a bar shape piece of non-cloth advertising material sporting a name, slogan, or other marketing message.[from wikipedia]

The bicycle's invention has had an enormous effect on society, both in terms of culture and of advancing modern industrial methods. Several components that eventually played a key role in the development of the automobile were initially invented for use in the bicycle, including ball bearings, pneumatic tires, chain-driven sprockets and tension-spoked wheels.[from wikipedia]

Costume is the distinctive style of dress of an individual or group that reflects their class, gender, profession, ethnicity, nationality, activity or epoch. The term also was traditionally used to describe typical appropriate clothing for certain activities, such as riding costume, swimming costume, dance costume, and evening costume. Appropriate and acceptable costume is subject to changes in fashion and local cultural norms.[from wikipedia]

Dance is a performing art form consisting of purposefully selected sequences of human movement. This movement has aesthetic and symbolic value, and is acknowledged as dance by performers and observers within a particular culture. Dance can be categorized and described by its choreography, by its repertoire of movements, or by its historical period or place of origin. [from wikipedia]

Feathers are epidermal growths that form the distinctive outer covering, or plumage, on birds and other, extinct species of dinosaurs. They are considered the most complex integumentary structures found in vertebrates.[from wikipedia]

A flag is a piece of fabric (most often rectangular or quadrilateral) with a distinctive design and colors. It is used as a symbol, a signaling device, or for decoration. The term flag is also used to refer to the graphic design employed, and flags have evolved into a general tool for rudimentary signalling and identification, especially in environments where communication is challenging (such as the maritime environment, where semaphore is used). The study of flags is known as "vexillology" from the Latin vexillum, meaning "flag" or "banner".[from wikipedia]

Parade floats were first introduced in the Middle Ages when churches used pageant wagons as movable scenery for passion plays. Artisan guilds were responsible for building the pageant wagons for their specified craft. The wagons were pulled throughout the town, most notably during Corpus Christi in which up to 48 wagons were used, one for each play in the Corpus Christi cycle.[from wikipedia]

In addition to facilitating the reproduction of flowering plants, flowers have long been admired and used by humans to bring beauty to their environment, and also as objects of romance, ritual, religion, medicine and as a source of food.[from wikipedia]

A hat is a head covering which is worn for various reasons, including protection against weather conditions, ceremonial reasons such as university graduation, religious reasons, safety, or as a fashion accessory. Some hats are worn for ceremonial purposes, such as the mortarboard, which is worn (or carried) during university graduation ceremonies. Some hats are worn by members of a certain profession, such as the Toque worn by chefs. Some hats have religious functions, such as the mitres worn by Bishops and the turban worn by Sikhs.[paraphrased from wikipedia]

Biologically, a child (plural: children) is a human being between the stages of birth and puberty. The legal definition of child generally refers to a minor, otherwise known as a person younger than the age of majority.[from wikipedia]

A lowrider (sometimes low rider) is a class or style of customized vehicle. Distinct from a regular lowered vehicle, these customized vehicles are generally individually painted with intricate, colorful designs, rolling on wire-spoke wheels with whitewall tires. Lowrider rims range from 13"-20". They are also fitted with hydraulic or air bag systems that allow the vehicle to be raised or lowered at the owner's command. Given these specific characteristics, while a lowrider is always a lowered car, a lowered car is not always a lowrider. The term is used to describe a class of vehicle, not simply the height from ground to chassis.[from wikipedia]

Human positions refer to the different physical configurations that the human body can take.The human body is capable of a wide variety of positions.There are several synonyms that refer to human positioning, often used interchangeably, but having specific nuances of meaning. Among them, Pose implies artistic or aesthetic intention of the position.[paraphrased from wikipedia]

Prelude is an event serving as an introduction to something more important.[paraphrased from dictionary dot com]

The main purpose of signs is to communicate, to convey information designed to assist the receiver with decision-making based on the information provided. Alternatively, promotional signage may be designed to persuade receivers of the merits of a given product or service. Signage is distinct from labeling, which conveys information about a particular product or service.[from wikipedia]

Stilts are poles, posts or pillars used to allow a person or structure to stand at a height above the ground. Stilts for walking are poles equipped with platforms for the feet to stand on and can be used, depending on the design, with straps to attach them to the user's legs or be held in place by the hands of the user. [from wikipedia]

A tattoo is a form of body modification where a design is made by inserting ink, dyes and pigments, either indelible or temporary, into the dermis layer of the skin to change the pigment. The art of making tattoos is tattooing. [from wikipedia]

Presented by San Francisco Cultural Arts Traditions. 2018 was filmedon Mission Street near 18th Street.