Archaeologists discovered an ancient burial site with artifacts from a pre-Columbian civilization

Researchers developed a new vaccine that provides protection against three different virusesThe railway service announced it would offer free travel to students during school breaks

A new TV show based on a popular video game became one of the most-watched series of the yearA study revealed that eating nuts as a snack helps maintain healthy cholesterol levelsA city installed more security cameras in parks to prevent vandalism and crime

An airline announced it would add more legroom to its economy class seats starting next yearScientists found that a certain type of algae can be used to produce clean biofuel

The government launched a campaign to encourage people to reduce their energy use at home

A museum hosted a lecture by a renowned archaeologist about recent discoveries in ancient ruinsThe public transit system added 25 new wheelchair-accessible buses to its fleet

A famous actress announced she will direct her first feature film next yearA study revealed that using blue light filters on devices can reduce eye strain by 50%

The government launched a program to provide free legal aid to low-income familiesLandslides in mountainous regions blocked two major highways stranding hundreds of drivers

(责任编辑：承德市)