Cornerstone in the context of "Basilica of Our Lady of Peace of Yamoussoukro"

A time capsule is a historic cache of goods or information, usually intended as a deliberate method of communication with future people, and to help future archaeologists, anthropologists, or historians. The preservation of holy relics dates back for millennia, but the practice of preparing and preserving a collection of everyday artifacts and messages to the future appears to be a more recent practice. Time capsules are sometimes created and buried during celebrations such as world's fairs or cornerstone layings for buildings or at other ceremonies.

Groundbreaking, also known as cutting, sod-cutting, turning the first sod, turf-cutting, or a sod-turning ceremony, is a traditional ceremony in many cultures that celebrates the first day of construction for a building or other project. Such ceremonies are often attended by dignitaries such as politicians and businesspeople.

The shovel used during the groundbreaking is often a special ceremonial shovel, sometimes colored gold, meant to be saved for subsequent display and may be engraved. In other groundbreaking ceremonies, a bulldozer is used instead of a shovel to mark the first day of construction. In some groundbreaking ceremonies, the shovel and the bulldozer mark the first day of construction. In other places, this ceremony can be replaced by a "laying of the first stone" event.

Saint Fin Barre's Cathedral (Irish: Ardeaglais Naomh Fionnbarra) is a Gothic Revival three-spire Church of Ireland cathedral in Cork city, Ireland. It is located on the south bank of the River Lee and dedicated to Finbarr of Cork, patron saint of the city. Formerly the sole cathedral of the Diocese of Cork, it is now one of three co-cathedrals in the United Dioceses of Cork, Cloyne and Ross in the ecclesiastical province of Dublin. Christian use of the site dates back 7th-century AD when, according to local lore, Finbarr of Cork founded a monastery. The original building survived until the 12th century, when it either fell into disuse or was destroyed during the Norman invasion of Ireland. Around 1536, during the Protestant Reformation, the cathedral became part of the established church, later known as the Church of Ireland. The previous building was constructed in the 1730s, but was widely regarded as plain and featureless.

The cathedral's demolition and rebuild was commissioned in the mid-19th century by an Anglican church intent on strengthening its hand after the reforms of penal law. Work began in 1863, and resulted in the first major commissioned project for the Victorian architect William Burges, who designed most of the cathedral's architecture, sculpture, stained glass, mosaics and interior furniture. Saint Fin Barre's foundation stone was laid in 1865. The cathedral was consecrated in 1870 and the limestone spires completed by October 1879.

United Nations General Assembly Resolution 1668 (XVI) was an act of the UN General Assembly that deemed the issue of Chinese representation at the UN an "important question" under the UN Charter; therefore any proposal to change of recognition either to the People's Republic of China from the Republic of China and designated as such as the representation of all of China at the UN would hence require a two-thirds majority of all voting members. The impetus for UN Resolution 1668 (1961) was raised by Australia, Colombia, Italy, Japan, and the United States and passed with 61 UN Member States voting in its favor, 34 UN Member States voted against it, 7 UN Member States abstaining, and 2 UN Member States non-voting. The Vienna Convention on Diplomatic Relations was signed by the Republic of China on 18 April 1961 and ratified on 19 December 1969. The Vienna Convention on Diplomatic Relations is the cornerstone of modern-day diplomacy since the Vienna Congress and followed by the UN.

Mosjøen (Norwegian; pronounced [ˈmùːʂøːn] ) or Mussere (Southern Sami) is a town in Vefsn Municipality in Nordland county, Norway. Mosjøen is the oldest town in the Helgeland region, with only the town of Bodø being older within Nordland county. The town is also the administrative centre of Vefsn Municipality. The old village of Mosjøen was declared a ladested in 1875. It was also a town-municipality (bykommune) from 1875 until 1961 when it was merged into Vefsn Municipality, losing its status as a town (ladested). It is also a former garrison town and customs place. After a change in law during the 1990s, the urban area of Mosjøen was declared to be a town once again in 1998. People from Mosjøen are referred to using the demonym "mosjøværing". The 6.55-square-kilometre (1,620-acre) town has a population (2024) of 10,059 and a population density of 1,536 inhabitants per square kilometre (3,980/sq mi).

Together with the other regional towns of Mo i Rana and Narvik, Mosjøen is one of the industrial towns in Nordland county. Owned by Alcoa, Mosjøen Aluminum Plant is among the biggest in Europe, and is traditionally the town's cornerstone. Additionally, the town's business sector includes trade, crafts, banking, transportation, and tourism. The town attracts customers from the entire region.

Agriculture has been a cornerstone of the People's Republic of China (PRC) and its predecessors' economy and culture for millennia, supporting one of the world's largest populations and driving economic development. The country produces a diverse range of crops, including rice, wheat, corn, potatoes, soybeans, tomatoes, millet, cotton, tea, fruits, vegetables, and oilseeds. Due to limited arable land—which constitutes roughly 10% of China's total land area—intensive farming practices, innovative agricultural technologies, and efficient land-use management have historically been critical in meeting domestic food demands.

China's agricultural history dates back to the Neolithic era, with archaeological evidence showing early domestication and cultivation of rice and millet. Over the centuries, the introduction of newer agricultural technologies such as the moldboard plow, advanced irrigation systems, and crop rotation shaped society, as it generated greater agricultural surpluses. In the modern era, agriculture was notably impacted by state-led policies, including land reforms in the early years of the PRC, the collectivization efforts of the Great Leap Forward, and subsequent reforms such as the Family Production Responsibility System introduced during China's economic liberalization beginning in 1978.

Rosh Pinna (Hebrew: ראש פינה, lit. 'Cornerstone') or Rosh Pina, is a town in the Korazim Plateau in the Upper Galilee on the eastern slopes of Mount Kna'an in the Northern District of Israel. It was established as Gei Oni in 1878 by local Jews from Tzfat but was nearly abandoned, except for the families of Yosef Friedman, Aharon Keller, and possibly a few others. In 1882, thirty Jewish families who had emigrated from Romania reestablished the settlement as a moshava called Rosh Pina. The town is one of the oldest Zionist settlements in Israel. In 2023 it had a population of 3,375.

The Rockefeller Archeological Museum, formerly the Palestine Archaeological Museum ("PAM"; 1938–1967), is an archaeology museum located in Jerusalem, next to Herod's Gate, that houses a large collection of artifacts unearthed in the excavations conducted in the British-ruled Mandatory Palestine, mainly in the 1920s and 1930s.

The museum was established through a donation by John D. Rockefeller Jr. for the creation of a museum and research center in Cairo. Designed by British architect Austen Harrison, it blends Western architectural achievements with Eastern influences, using materials such as Turkish nut doors and Armenian ceramics. The foundation stone was laid in June 1930, and the museum opened in January 1938. Initially managed by an international body, it was nationalized by the Jordanians in 1966. During the Six-Day War in 1967, battles occurred in the area, and the museum came under Israeli control. Renamed the "Rockefeller Museum," it is now managed by the Israel Museum and houses the head office of the Israel Antiquities Authority.