Complex sentence: The church and almost all its sculpture and paintings were created within a thirty-year period: construction began in 1725, the church was consecrated in 1743, and the last sculptural decoration was in place by 1755.
Split into simpler sentences: The church and almost all its sculpture and paintings were created within the same thirty-year period. Construction began in 1725, the church was consecrated in 1743, and the last sculptural decoration was in place by 1755.