Silas (Acts 15:40) Timothy was added at Lystra Acts 16:1-3. Luke is the recognized author of Acts and has references later in chapter 16 that use the pronoun "we" so he was apparently with them on this trip.
Timothy was Pauls companion on the second missionary journey.
timothy
1 and 2 Thessalonians were written during Paul's Second Missionary Journey.
Paul visited Corinth during his second missionary journey, where he stayed for over a year and a half. He visited Athens during his second missionary journey as well, after leaving Berea and before arriving in Corinth.
49 AD
Paul's second missionary journey was to Greece A.D. 50-53.
approximately 1,400 miles
Paul received the "Macedonian call" while on his second missionary journey. His first trip to Europe was in response to this call. You can read about when Paul started his second missionary journey in Acts 15:36-41, and when Paul received the "Macedonian call" in Acts 16:6-11, and read about the first convert in Europe in Acts 16:14-15.
Missionary
During Paul's second missionary journey he spent 1 year and 6 months at Corinth.
I think its in Antioch
Timotheus
Barnabas was Paul's companion on his first missionary journey. They traveled together to Cyprus and Asia Minor to preach the gospel and establish churches.