What are some things Buddhism and Taoism have in common? Zen and Tao in common?

I understand that Buddhism and Taoism is Zen, so what did Buddhism take from Tao?

All of them are from Asia...

Buddhism (Pali/Sanskrit: S's AAddha Dharma) is a religion and philosophy encompassing a variety of traditions, beliefs and practices, largely based on teachings attributed to Siddhartha Gautama, commonly known as the Buddha (P?li/Sanskrit "the awakened one"). The Buddha lived and taught in the northeastern Indian subcontinent some time between the 6Th and 4Th centuries BCE. He is recognized by Buddhists as an awakened or enlightened teacher who shared his insights to help sentient beings end suffering (or Gurkha), achieve nirvana, and escape what is seen as a cycle of suffering and rebirth.

Two major branches of Buddhism are recognized: Theravada ("The School of the Elders") and Mahayana ("The Great Vehicle"). Theravada?the oldest surviving branch?has a widespread following in Sri Lanka and Southeast Asia. Mahayana is found throughout East Asia and includes the traditions of Pure Land, Zen, Nichiren Buddhism, Tibetan Buddhism, Shingon, Tendai and Shinnyo-en. In some classifications Vajrayana?a subcategory of Mahayana practiced in Tibet and Mongolia?is recognized as a third branch. While Buddhism remains most popular within Asia, both branches are now found throughout the world. Estimates of Buddhists worldwide vary significantly depending on the way Buddhist adherence is defined. Lower estimates are between 350?500 million.

Buddhist schools vary on the exact nature of the path to liberation, the importance and canonicity of various teachings and scriptures, and especially their respective practices. The foundations of Buddhist tradition and practice are the Three Jewels: the Buddha, the Dharma (the teachings), and the Sangha (the community). Taking "refuge in the triple gem" has traditionally been a declaration and commitment to being on the Buddhist path and in general distinguishes a Buddhist from a non-Buddhist. Other practices may include following ethical precepts, support of the monastic community, renouncing conventional living and becoming a monastic, the development of mindfulness and practice of meditation, cultivation of higher wisdom and discernment, study of scriptures, devotional practices, ceremonies, and in the Mahayana tradition, invocation of buddhas and bodhisattvas.

Taoism (also spelled Daoism; see below) refers to a variety of related philosophical and religious traditions that have influenced Eastern Asia for more than two millennia. They also notably influenced the Western world, particularly since the 19th century. The word ?, Tao (or Dao, depending on the romanization scheme), roughly translates as "path" or "way". It carries more abstract, spiritual meanings in folk religion and Chinese philosophy.

Taoist propriety and ethics emphasize the Three Jewels of the Tao: compassion, moderation, and humility, while Taoist thought generally focuses on nature, the relationship between humanity and the cosmos (????); health and longevity; and wu wei (action through inaction). Harmony with the Universe, or the source thereof (Tao), is the intended result of many Taoist rules and practices.

Reverence for ancestor spirits and immortals is common in popular Taoism. Organized Taoism distinguishes its ritual activity from that of the folk religion, which some professional Taoists (D?oshi) view as debased. Chinese alchemy (including Neidan), astrology, cuisine, Zen Buddhism, several Chinese martial arts, Chinese traditional medicine, feng shui, and many styles of qigong have been intertwined with Taoism throughout history.

Zen is a school of Mah?y?na Buddhism. The word Zen is from the Japanese pronunciation of the Chinese word Chan (?), which in turn is derived from the Sanskrit word dhy?na, which can be approximately translated as "meditation" or "meditative state".

Zen emphasizes experiential Wisdom in the attainment of enlightenment. As such, it de-emphasizes theoretical knowledge in favor of direct realization through meditation and dharma practice. The teachings of Zen include various sources of Mah?y?na thought, including the Praj??p?ramit? literature and the teachings of the Yog?c?ra and Tath?gatagarbha schools.

The emergence of Zen as a distinct school of Buddhism was first documented in China in the 7th century CE. From China, Zen spread south to Vietnam, and east to Korea and Japan. As a matter of tradition, the establishment of Zen is credited to the Persian or South Indian Pallava prince-turned-monk Bodhidharma, who came to China to teach a "special transmission outside scriptures, not founded on words or letters".

Both Buddhism and Taoism are practiced alongside Chinese and Indian mythology/spirit ism in Asia.